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* Merge remote-tracking branch 'common/android-4.4-p' into ↵Michael Bestas2021-12-27
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lineage-18.1-caf-msm8998 * common/android-4.4-p: Linux 4.4.296 xen/netback: don't queue unlimited number of packages xen/console: harden hvc_xen against event channel storms xen/netfront: harden netfront against event channel storms xen/blkfront: harden blkfront against event channel storms Input: touchscreen - avoid bitwise vs logical OR warning ARM: 8805/2: remove unneeded naked function usage net: lan78xx: Avoid unnecessary self assignment net: systemport: Add global locking for descriptor lifecycle timekeeping: Really make sure wall_to_monotonic isn't positive USB: serial: option: add Telit FN990 compositions PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error USB: gadget: bRequestType is a bitfield, not a enum igbvf: fix double free in `igbvf_probe` soc/tegra: fuse: Fix bitwise vs. logical OR warning nfsd: fix use-after-free due to delegation race dm btree remove: fix use after free in rebalance_children() recordmcount.pl: look for jgnop instruction as well as bcrl on s390 mac80211: send ADDBA requests using the tid/queue of the aggregation session hwmon: (dell-smm) Fix warning on /proc/i8k creation error net: netlink: af_netlink: Prevent empty skb by adding a check on len. i2c: rk3x: Handle a spurious start completion interrupt flag parisc/agp: Annotate parisc agp init functions with __init nfc: fix segfault in nfc_genl_dump_devices_done FROMGIT: USB: gadget: bRequestType is a bitfield, not a enum Linux 4.4.295 irqchip: nvic: Fix offset for Interrupt Priority Offsets irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove iio: itg3200: Call iio_trigger_notify_done() on error iio: ltr501: Don't return error code in trigger handler iio: mma8452: Fix trigger reference couting iio: stk3310: Don't return error code in interrupt handler usb: core: config: fix validation of wMaxPacketValue entries USB: gadget: zero allocate endpoint 0 buffers USB: gadget: detect too-big endpoint 0 requests net/qla3xxx: fix an error code in ql_adapter_up() net, neigh: clear whole pneigh_entry at alloc time net: fec: only clear interrupt of handling queue in fec_enet_rx_queue() net: altera: set a couple error code in probe() net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2) tracefs: Set all files to the same group ownership as the mount option signalfd: use wake_up_pollfree() binder: use wake_up_pollfree() wait: add wake_up_pollfree() libata: add horkage for ASMedia 1092 can: pch_can: pch_can_rx_normal: fix use after free tracefs: Have new files inherit the ownership of their parent ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() ALSA: pcm: oss: Limit the period size to 16MB ALSA: pcm: oss: Fix negative period/buffer sizes ALSA: ctl: Fix copy of updated id with element read/write mm: bdi: initialize bdi_min_ratio when bdi is unregistered nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done can: sja1000: fix use after free in ems_pcmcia_add_card() HID: check for valid USB device for many HID drivers HID: wacom: fix problems when device is not a valid USB device HID: add USB_HID dependancy on some USB HID drivers HID: add USB_HID dependancy to hid-chicony HID: add USB_HID dependancy to hid-prodikeys HID: add hid_is_usb() function to make it simpler for USB detection HID: introduce hid_is_using_ll_driver UPSTREAM: USB: gadget: zero allocate endpoint 0 buffers UPSTREAM: USB: gadget: detect too-big endpoint 0 requests Linux 4.4.294 serial: pl011: Add ACPI SBSA UART match id tty: serial: msm_serial: Deactivate RX DMA for polling support vgacon: Propagate console boot parameters before calling `vc_resize' parisc: Fix "make install" on newer debian releases siphash: use _unaligned version by default net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() natsemi: xtensa: fix section mismatch warnings fget: check that the fd still exists after getting a ref to it fs: add fget_many() and fput_many() sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl kprobes: Limit max data_size of the kretprobe instances net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock() net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound scsi: iscsi: Unblock session then wake up error handler s390/setup: avoid using memblock_enforce_memory_limit platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep net: return correct error code hugetlb: take PMD sharing into account when flushing tlb/caches tty: hvc: replace BUG_ON() with negative return value xen/netfront: don't trust the backend response data blindly xen/netfront: disentangle tx_skb_freelist xen/netfront: don't read data from request on the ring page xen/netfront: read response from backend only once xen/blkfront: don't trust the backend response data blindly xen/blkfront: don't take local copy of a request from the ring page xen/blkfront: read response from backend only once xen: sync include/xen/interface/io/ring.h with Xen's newest version shm: extend forced shm destroy to support objects from several IPC nses fuse: release pipe buf after last use fuse: fix page stealing NFC: add NCI_UNREG flag to eliminate the race proc/vmcore: fix clearing user buffer by properly using clear_user() hugetlbfs: flush TLBs correctly after huge_pmd_unshare tracing: Check pid filtering when creating events tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows scsi: mpt3sas: Fix kernel panic during drive powercycle test ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE NFSv42: Don't fail clone() unless the OP_CLONE operation failed net: ieee802154: handle iftypes as u32 ASoC: topology: Add missing rwsem around snd_ctl_remove() calls ARM: dts: BCM5301X: Add interrupt properties to GPIO node xen: detect uninitialized xenbus in xenbus_init xen: don't continue xenstore initialization in case of errors staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() ALSA: ctxfi: Fix out-of-range access binder: fix test regression due to sender_euid change usb: hub: Fix locking issues with address0_mutex usb: hub: Fix usb enumeration issue due to address0 race USB: serial: option: add Fibocom FM101-GL variants USB: serial: option: add Telit LE910S1 0x9200 composition staging: ion: Prevent incorrect reference counting behavour Change-Id: Iadf9f213915d2a02b27ceb3b2144eac827ade329
| * Merge 4.4.294 into android-4.4-pGreg Kroah-Hartman2021-12-08
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.294 staging: ion: Prevent incorrect reference counting behavour USB: serial: option: add Telit LE910S1 0x9200 composition USB: serial: option: add Fibocom FM101-GL variants usb: hub: Fix usb enumeration issue due to address0 race usb: hub: Fix locking issues with address0_mutex binder: fix test regression due to sender_euid change ALSA: ctxfi: Fix out-of-range access staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() xen: don't continue xenstore initialization in case of errors xen: detect uninitialized xenbus in xenbus_init ARM: dts: BCM5301X: Add interrupt properties to GPIO node ASoC: topology: Add missing rwsem around snd_ctl_remove() calls net: ieee802154: handle iftypes as u32 NFSv42: Don't fail clone() unless the OP_CLONE operation failed ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE scsi: mpt3sas: Fix kernel panic during drive powercycle test tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows tracing: Check pid filtering when creating events hugetlbfs: flush TLBs correctly after huge_pmd_unshare proc/vmcore: fix clearing user buffer by properly using clear_user() NFC: add NCI_UNREG flag to eliminate the race fuse: fix page stealing fuse: release pipe buf after last use shm: extend forced shm destroy to support objects from several IPC nses xen: sync include/xen/interface/io/ring.h with Xen's newest version xen/blkfront: read response from backend only once xen/blkfront: don't take local copy of a request from the ring page xen/blkfront: don't trust the backend response data blindly xen/netfront: read response from backend only once xen/netfront: don't read data from request on the ring page xen/netfront: disentangle tx_skb_freelist xen/netfront: don't trust the backend response data blindly tty: hvc: replace BUG_ON() with negative return value hugetlb: take PMD sharing into account when flushing tlb/caches net: return correct error code platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep s390/setup: avoid using memblock_enforce_memory_limit scsi: iscsi: Unblock session then wake up error handler net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock() kprobes: Limit max data_size of the kretprobe instances sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl fs: add fget_many() and fput_many() fget: check that the fd still exists after getting a ref to it natsemi: xtensa: fix section mismatch warnings net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() siphash: use _unaligned version by default parisc: Fix "make install" on newer debian releases vgacon: Propagate console boot parameters before calling `vc_resize' tty: serial: msm_serial: Deactivate RX DMA for polling support serial: pl011: Add ACPI SBSA UART match id Linux 4.4.294 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Id3cafc33da957a0501bcf61d000025167d552797
| | * hugetlbfs: flush TLBs correctly after huge_pmd_unshareNadav Amit2021-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a4a118f2eead1d6c49e00765de89878288d4b890 upstream. When __unmap_hugepage_range() calls to huge_pmd_unshare() succeed, a TLB flush is missing. This TLB flush must be performed before releasing the i_mmap_rwsem, in order to prevent an unshared PMDs page from being released and reused before the TLB flush took place. Arguably, a comprehensive solution would use mmu_gather interface to batch the TLB flushes and the PMDs page release, however it is not an easy solution: (1) try_to_unmap_one() and try_to_migrate_one() also call huge_pmd_unshare() and they cannot use the mmu_gather interface; and (2) deferring the release of the page reference for the PMDs page until after i_mmap_rwsem is dropeed can confuse huge_pmd_unshare() into thinking PMDs are shared when they are not. Fix __unmap_hugepage_range() by adding the missing TLB flush, and forcing a flush when unshare is successful. Fixes: 24669e58477e ("hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages)" # 3.6 Signed-off-by: Nadav Amit <namit@vmware.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-08-23
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05900-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 59f04f292e871 ANDROID: fix a bug in quota2 Conflicts: Makefile fs/ext4/inode.c fs/f2fs/dir.c Change-Id: Ic71b44a02908cf633d96114f0ff745cf1e1186de
| * | Merge 4.4.233 into android-4.4-pGreg Kroah-Hartman2020-08-21
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.233 xfs: don't call xfs_da_shrink_inode with NULL bp net: phy: mdio-bcm-unimac: fix potential NULL dereference in unimac_mdio_probe() media: rc: prevent memory leak in cx23888_ir_probe ath9k_htc: release allocated buffer if timed out ath9k: release allocated buffer if timed out nfs: Move call to security_inode_listsecurity into nfs_listxattr PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge drm/amdgpu: Prevent kernel-infoleak in amdgpu_info_ioctl() drm: hold gem reference until object is no longer accessed f2fs: check memory boundary by insane namelen f2fs: check if file namelen exceeds max value ARM: 8986/1: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins. rds: Prevent kernel-infoleak in rds_notify_queue_get() net/x25: Fix x25_neigh refcnt leak when x25 disconnect net/x25: Fix null-ptr-deref in x25_disconnect sh: Fix validation of system call number net: lan78xx: add missing endpoint sanity check net: lan78xx: fix transfer-buffer memory leak mlxsw: core: Increase scope of RCU read-side critical section mac80211: mesh: Free ie data when leaving mesh nfc: s3fwrn5: add missing release on skb in s3fwrn5_recv_frame net: ethernet: ravb: exit if re-initialization fails in tx timeout Revert "i2c: cadence: Fix the hold bit setting" xen-netfront: fix potential deadlock in xennet_remove() x86/i8259: Use printk_deferred() to prevent deadlock random32: update the net random state on interrupt and activity ARM: percpu.h: fix build error random: fix circular include dependency on arm64 after addition of percpu.h random32: remove net_rand_state from the latent entropy gcc plugin random32: move the pseudo-random 32-bit definitions to prandom.h ext4: fix direct I/O read error USB: serial: qcserial: add EM7305 QDL product ID ALSA: seq: oss: Serialize ioctls Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt() Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_evt() Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_with_rssi_evt() vgacon: Fix for missing check in scrollback handling mtd: properly check all write ioctls for permissions net/9p: validate fds in p9_fd_open drm/nouveau/fbcon: fix module unload when fbcon init has failed for some reason cfg80211: check vendor command doit pointer before use igb: reinit_locked() should be called with rtnl_lock atm: fix atm_dev refcnt leaks in atmtcp_remove_persistent tools lib traceevent: Fix memory leak in process_dynamic_array_len binder: Prevent context manager from incrementing ref 0 ipv4: Silence suspicious RCU usage warning ipv6: fix memory leaks on IPV6_ADDRFORM path Revert "vxlan: fix tos value before xmit" net: lan78xx: replace bogus endpoint lookup usb: hso: check for return value in hso_serial_common_create() vxlan: Ensure FDB dump is performed under RCU Smack: fix use-after-free in smk_write_relabel_self() tracepoint: Mark __tracepoint_string's __used udp: drop corrupt packets earlier to avoid data corruption gpio: fix oops resulting from calling of_get_named_gpio(NULL, ...) EDAC: Fix reference count leaks m68k: mac: Don't send IOP message until channel is idle m68k: mac: Fix IOP status/control register writes ARM: at91: pm: add missing put_device() call in at91_pm_sram_init() ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() drm/tilcdc: fix leak & null ref in panel_connector_get_modes Bluetooth: add a mutex lock to avoid UAF in do_enale_set fs/btrfs: Add cond_resched() for try_release_extent_mapping() stalls drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync video: fbdev: neofb: fix memory leak in neo_scan_monitor() drm/nouveau: fix multiple instances of reference count leaks drm/debugfs: fix plain echo to connector "force" attribute mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls brcmfmac: To fix Bss Info flag definition Bug iwlegacy: Check the return value of pcie_capability_read_*() usb: gadget: net2280: fix memory leak on probe error handling paths bdc: Fix bug causing crash after multiple disconnects dyndbg: fix a BUG_ON in ddebug_describe_flags bcache: fix super block seq numbers comparision in register_cache_set() ACPICA: Do not increment operation_region reference counts for field units agp/intel: Fix a memory leak on module initialisation failure video: fbdev: sm712fb: fix an issue about iounmap for a wrong address console: newport_con: fix an issue about leak related system resources iio: improve IIO_CONCENTRATION channel type description leds: lm355x: avoid enum conversion warning media: omap3isp: Add missed v4l2_ctrl_handler_free() for preview_init_entities() scsi: cumana_2: Fix different dev_id between request_irq() and free_irq() cxl: Fix kobject memleak drm/radeon: fix array out-of-bounds read and write issues scsi: powertec: Fix different dev_id between request_irq() and free_irq() scsi: eesox: Fix different dev_id between request_irq() and free_irq() media: firewire: Using uninitialized values in node_probe() media: exynos4-is: Add missed check for pinctrl_lookup_state() drm: panel: simple: Fix bpc for LG LB070WV8 panel mwifiex: Prevent memory corruption handling keys powerpc/vdso: Fix vdso cpu truncation PCI/ASPM: Add missing newline in sysfs 'policy' usb: dwc2: Fix error path in gadget registration scsi: mesh: Fix panic after host or bus reset Smack: fix another vsscanf out of bounds Smack: prevent underflow in smk_set_cipso() power: supply: check if calc_soc succeeded in pm860x_init_battery s390/qeth: don't process empty bridge port events wl1251: fix always return 0 error net: spider_net: Fix the size used in a 'dma_free_coherent()' call dlm: Fix kobject memleak pinctrl-single: fix pcs_parse_pinconf() return value drivers/net/wan/lapbether: Added needed_headroom and a skb->len check net/nfc/rawsock.c: add CAP_NET_RAW check. net: Set fput_needed iff FDPUT_FPUT is set ALSA: usb-audio: Creative USB X-Fi Pro SB1095 volume knob support ALSA: usb-audio: fix overeager device match for MacroSilicon MS2109 ALSA: usb-audio: add quirk for Pioneer DDJ-RB crypto: qat - fix double free in qat_uclo_create_batch_init_list fs/minix: check return value of sb_getblk() fs/minix: don't allow getting deleted inodes fs/minix: reject too-large maximum file size ALSA: usb-audio: work around streaming quirk for MacroSilicon MS2109 9p: Fix memory leak in v9fs_mount parisc: mask out enable and reserved bits from sba imask ARM: 8992/1: Fix unwind_frame for clang-built kernels xen/balloon: fix accounting in alloc_xenballooned_pages error path xen/balloon: make the balloon wait interruptible PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context() btrfs: only search for left_info if there is no right_info in try_merge_free_space btrfs: fix memory leaks after failure to lookup checksums during inode logging powerpc: Fix circular dependency between percpu.h and mmu.h net: ethernet: stmmac: Disable hardware multicast filter net: stmmac: dwmac1000: provide multicast filter fallback md/raid5: Fix Force reconstruct-write io stuck in degraded raid5 bcache: allocate meta data pages as compound pages mac80211: fix misplaced while instead of if MIPS: CPU#0 is not hotpluggable ext2: fix missing percpu_counter_inc ocfs2: change slot number type s16 to u16 kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler pseries: Fix 64 bit logical memory block panic USB: serial: ftdi_sio: make process-packet buffer unsigned USB: serial: ftdi_sio: clean up receive processing iommu/omap: Check for failure of a call to omap_iommu_dump_ctx iommu/vt-d: Enforce PASID devTLB field mask i2c: rcar: slave: only send STOP event when we have been addressed clk: clk-atlas6: fix return value check in atlas6_clk_init() Input: sentelic - fix error return when fsp_reg_write fails drm/vmwgfx: Fix two list_for_each loop exit tests nfs: Fix getxattr kernel panic and memory overflow fs/ufs: avoid potential u32 multiplication overflow mfd: dln2: Run event handler loop under spinlock ALSA: echoaudio: Fix potential Oops in snd_echo_resume() sh: landisk: Add missing initialization of sh_io_port_base ipv6: check skb->protocol before lookup for nexthop Linux 4.4.233 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Iec7dcf69361bcc247996f3de2e20ba64ed0ce3a8
| | * ARM: percpu.h: fix build errorGrygorii Strashko2020-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit aa54ea903abb02303bf55855fb51e3fcee135d70 upstream. Fix build error for the case: defined(CONFIG_SMP) && !defined(CONFIG_CPU_V6) config: keystone_defconfig CC arch/arm/kernel/signal.o In file included from ../include/linux/random.h:14, from ../arch/arm/kernel/signal.c:8: ../arch/arm/include/asm/percpu.h: In function ‘__my_cpu_offset’: ../arch/arm/include/asm/percpu.h:29:34: error: ‘current_stack_pointer’ undeclared (first use in this function); did you mean ‘user_stack_pointer’? : "Q" (*(const unsigned long *)current_stack_pointer)); ^~~~~~~~~~~~~~~~~~~~~ user_stack_pointer Fixes: f227e3ec3b5c ("random32: update the net random state on interrupt and activity") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'LA.UM.8.4.r1-05700-8x98.0' of ↵Michael Bestas2020-07-23
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://source.codeaurora.org/quic/la/kernel/msm-4.4 into lineage-17.1-caf-msm8998 * tag 'LA.UM.8.4.r1-05700-8x98.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4: msm: adsprpc: Fix array index underflow problem profiler: Fix compilation errors fbdev: msm: fix ret value while translating to mdp format clk: msm: Fix compilation errors with clang ath10k: Fix compilation issue drm/msm/sde: Fix clang compilation in SDE driver ais: cam_soc_api: Fix compilation error msm: camera: reset atomic variable msm: v4l2loopback: Fix clang compilation error msm: Fix compilation error asoc: msm-8998: Add new FE's for TDM Primary diag: dci: Synchronize dci mempool buffers alloc and free headers_lib: rename Android.bp kbuild: skip install/check of headers right under uapi directories uapi: export all arch specifics directories kernel_headers: Fix headers not detected in incremental builds kernel headers: Update comparison logic Kbuild : Use no-export-headers to avoid exporting headers kernel_headers: kernel headers library package kbuild: replace genhdr-y with generated-y uapi: export all headers under uapi directories uapi: sound: move necessary sound headers under uapi kernel: Fix build errors with LLVM Revert "ARM: dts: msm: Remove cpu max frequency restriction on cold temp for msm8996." ARM: dts: msm: Remove cpu max frequency restriction on cold temp for msm8996. input: touchpanel: Fix compilation errors with clang asoc: msm-8998: TDM device grouping changes for capture path kbuild, x86: Track generated headers with generated-y kbuild: Remove stale asm-generic wrappers ARM: put types.h in uapi msm: ais: jpegdma: Fix uninitialized variable Makefile.headersinst: remove destination-y option msm: adsprpc: DSP device node to provide restricted access to ADSP/SLPI Conflicts: .gitignore drivers/mmc/core/sdio_cis.c Change-Id: I70cf2a0fbcfcbc834a21cf7fa8db9bd2e1c755b1
| * | | kbuild: replace genhdr-y with generated-yMasahiro Yamada2020-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally, generated-y and genhdr-y had different meaning, like follows: - generated-y: generated headers (other than asm-generic wrappers) - header-y : headers to be exported - genhdr-y : generated headers to be exported (generated-y + header-y) Since commit fcc8487d477a ("uapi: export all headers under uapi directories"), headers under UAPI directories are all exported. So, there is no more difference between generated-y and genhdr-y. We see two users of genhdr-y, arch/{arm,x86}/include/uapi/asm/Kbuild. They generate some headers in arch/{arm,x86}/include/generated/uapi/asm directories, which are obviously exported. Replace them with generated-y, and abolish genhdr-y. Change-Id: I9b8b97c39673e93e3d1215090f31d68beffddbd7 Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Git-Commit: ae3f4151737d2aad271e5b1f2553c5d56e52850c Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [bharad@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Naitik Bharadiya <bharad@codeaurora.org> [schikk@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
| * | | uapi: export all headers under uapi directoriesNicolas Dichtel2020-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Regularly, when a new header is created in include/uapi/, the developer forgets to add it in the corresponding Kbuild file. This error is usually detected after the release is out. In fact, all headers under uapi directories should be exported, thus it's useless to have an exhaustive list. After this patch, the following files, which were not exported, are now exported (with make headers_install_all): asm-arc/kvm_para.h asm-arc/ucontext.h asm-blackfin/shmparam.h asm-blackfin/ucontext.h asm-c6x/shmparam.h asm-c6x/ucontext.h asm-cris/kvm_para.h asm-h8300/shmparam.h asm-h8300/ucontext.h asm-hexagon/shmparam.h asm-m32r/kvm_para.h asm-m68k/kvm_para.h asm-m68k/shmparam.h asm-metag/kvm_para.h asm-metag/shmparam.h asm-metag/ucontext.h asm-mips/hwcap.h asm-mips/reg.h asm-mips/ucontext.h asm-nios2/kvm_para.h asm-nios2/ucontext.h asm-openrisc/shmparam.h asm-parisc/kvm_para.h asm-powerpc/perf_regs.h asm-sh/kvm_para.h asm-sh/ucontext.h asm-tile/shmparam.h asm-unicore32/shmparam.h asm-unicore32/ucontext.h asm-x86/hwcap2.h asm-xtensa/kvm_para.h drm/armada_drm.h drm/etnaviv_drm.h drm/vgem_drm.h linux/aspeed-lpc-ctrl.h linux/auto_dev-ioctl.h linux/bcache.h linux/btrfs_tree.h linux/can/vxcan.h linux/cifs/cifs_mount.h linux/coresight-stm.h linux/cryptouser.h linux/fsmap.h linux/genwqe/genwqe_card.h linux/hash_info.h linux/kcm.h linux/kcov.h linux/kfd_ioctl.h linux/lightnvm.h linux/module.h linux/nbd-netlink.h linux/nilfs2_api.h linux/nilfs2_ondisk.h linux/nsfs.h linux/pr.h linux/qrtr.h linux/rpmsg.h linux/sched/types.h linux/sed-opal.h linux/smc.h linux/smc_diag.h linux/stm.h linux/switchtec_ioctl.h linux/vfio_ccw.h linux/wil6210_uapi.h rdma/bnxt_re-abi.h Note that I have removed from this list the files which are generated in every exported directories (like .install or .install.cmd). Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all subdirs with a pure makefile command. For the record, note that exported files for asm directories are a mix of files listed by: - include/uapi/asm-generic/Kbuild.asm; - arch/<arch>/include/uapi/asm/Kbuild; - arch/<arch>/include/asm/Kbuild. Change-Id: I132df74f736b8f35f77390eaa12804e74ef536ee Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Mark Salter <msalter@redhat.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Git-Commit: fcc8487d477a3452a1d0ccbdd4c5e0e1e3cb8bed Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [bharad@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Naitik Bharadiya <bharad@codeaurora.org> [schikk@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
| * | | ARM: put types.h in uapiNicolas Dichtel2020-05-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the way kbuild works, this header was unintentionally exported back in 2013 when it was created, despite it not being in a uapi/ directory. This is very non-intuitive behaviour by Kbuild. However, we've had this include exported to userland for almost four years, and searching google for "ARM types.h __UINTPTR_TYPE__" gives no hint that anyone has complained about it. So, let's make it officially exported in this state. Change-Id: I1168811eec6879e6ca0a2c45f70577d6406615d1 Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Git-Commit: ed79c9d34f4f4c5842b66cab840315e7ac29f666 Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [bharad@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Naitik Bharadiya <bharad@codeaurora.org>
* | | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-06-04
|\ \ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05500-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 60fca75727065 Merge 4.4.226 into android-4.4-p Conflicts: drivers/base/firmware_class.c drivers/gpu/drm/msm/msm_gem.c drivers/mmc/host/sdhci.c drivers/net/wireless/ath/ath10k/core.c kernel/trace/blktrace.c net/socket.c sound/core/rawmidi.c sound/usb/mixer.c Change-Id: Ic8599e865656da72a9405c45f27091ec1ddc168c
| * | | Merge 4.4.225 into android-4.4-pGreg Kroah-Hartman2020-05-27
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.225 igb: use igb_adapter->io_addr instead of e1000_hw->hw_addr padata: Remove unused but set variables padata: get_next is never NULL padata: ensure the reorder timer callback runs on the correct CPU padata: ensure padata_do_serial() runs on the correct CPU evm: Check also if *tfm is an error pointer in init_desc() fix multiplication overflow in copy_fdtable() HID: multitouch: add eGalaxTouch P80H84 support ceph: fix double unlock in handle_cap_export() USB: core: Fix misleading driver bug report platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA ARM: futex: Address build warning media: Fix media_open() to clear filp->private_data in error leg drivers/media/media-devnode: clear private_data before put_device() media-devnode: add missing mutex lock in error handler media-devnode: fix namespace mess media-device: dynamically allocate struct media_devnode media: fix use-after-free in cdev_put() when app exits after driver unbind media: fix media devnode ioctl/syscall and unregister race i2c: dev: switch from register_chrdev to cdev API i2c: dev: don't start function name with 'return' i2c: dev: use after free in detach i2c-dev: don't get i2c adapter via i2c_dev i2c: dev: Fix the race between the release of i2c_dev and cdev padata: set cpu_index of unused CPUs to -1 sched/fair, cpumask: Export for_each_cpu_wrap() padata: Replace delayed timer with immediate workqueue in padata_reorder padata: initialize pd->cpu with effective cpumask padata: purge get_cpu and reorder_via_wq from padata_do_serial ALSA: pcm: fix incorrect hw_base increase ext4: lock the xattr block before checksuming it platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer libnvdimm/btt: Remove unnecessary code in btt_freelist_init l2tp: lock socket before checking flags in connect() l2tp: fix racy socket lookup in l2tp_ip and l2tp_ip6 bind() l2tp: hold session while sending creation notifications l2tp: take a reference on sessions used in genetlink handlers l2tp: don't use l2tp_tunnel_find() in l2tp_ip and l2tp_ip6 net: l2tp: export debug flags to UAPI net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_* New kernel function to get IP overhead on a socket. L2TP:Adjust intf MTU, add underlay L3, L2 hdrs. l2tp: remove useless duplicate session detection in l2tp_netlink l2tp: remove l2tp_session_find() l2tp: define parameters of l2tp_session_get*() as "const" l2tp: define parameters of l2tp_tunnel_find*() as "const" l2tp: initialise session's refcount before making it reachable l2tp: hold tunnel while looking up sessions in l2tp_netlink l2tp: hold tunnel while processing genl delete command l2tp: hold tunnel while handling genl tunnel updates l2tp: hold tunnel while handling genl TUNNEL_GET commands l2tp: hold tunnel used while creating sessions with netlink l2tp: prevent creation of sessions on terminated tunnels l2tp: pass tunnel pointer to ->session_create() l2tp: fix l2tp_eth module loading l2tp: don't register sessions in l2tp_session_create() l2tp: initialise l2tp_eth sessions before registering them l2tp: protect sock pointer of struct pppol2tp_session with RCU l2tp: initialise PPP sessions before registering them Revert "gfs2: Don't demote a glock until its revokes are written" staging: iio: ad2s1210: Fix SPI reading mei: release me_cl object reference iio: sca3000: Remove an erroneous 'get_device()' l2tp: device MTU setup, tunnel socket needs a lock cpumask: Make for_each_cpu_wrap() available on UP as well Linux 4.4.225 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I87dc4ca47f34d594fff7c1da28c7a4596659c029
| | * | ARM: futex: Address build warningThomas Gleixner2020-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 8101b5a1531f3390b3a69fa7934c70a8fd6566ad ] Stephen reported the following build warning on a ARM multi_v7_defconfig build with GCC 9.2.1: kernel/futex.c: In function 'do_futex': kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] 1676 | return oldval == cmparg; | ~~~~~~~^~~~~~~~~ kernel/futex.c:1652:6: note: 'oldval' was declared here 1652 | int oldval, ret; | ^~~~~~ introduced by commit a08971e9488d ("futex: arch_futex_atomic_op_inuser() calling conventions change"). While that change should not make any difference it confuses GCC which fails to work out that oldval is not referenced when the return value is not zero. GCC fails to properly analyze arch_futex_atomic_op_inuser(). It's not the early return, the issue is with the assembly macros. GCC fails to detect that those either set 'ret' to 0 and set oldval or set 'ret' to -EFAULT which makes oldval uninteresting. The store to the callsite supplied oldval pointer is conditional on ret == 0. The straight forward way to solve this is to make the store unconditional. Aside of addressing the build warning this makes sense anyway because it removes the conditional from the fastpath. In the error case the stored value is uninteresting and the extra store does not matter at all. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/87pncao2ph.fsf@nanos.tec.linutronix.de Signed-off-by: Sasha Levin <sashal@kernel.org>
* | | | Merge tag 'LA.UM.8.4.r1-05500-8x98.0' of ↵Michael Bestas2020-06-03
|\ \ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://source.codeaurora.org/quic/la/kernel/msm-4.4 into lineage-17.1-caf-msm8998 * tag 'LA.UM.8.4.r1-05500-8x98.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4: ARM: convert to generated system call tables ARM: remove indirection of asm/mach-types.h mm/zsmalloc.c: change stat type parameter to int msm: sde: fix mem access of sde rotator regdma ram soc: qcom: Fix strlcpy compilation error with clang sysmon-qmi: Fix compilation error while using LLVM mm/zsmalloc.c: fix -Wunneeded-internal-declaration warning sched/sysctl: Fix attributes of some extern declarations ion: Fix typecasting of msm_ion_heap_types soc: qcom: glink_debugfs: Fix compilation error with clang msm: ipa3: Fix compilation errors after enabling LLVM msm: ipa: Fix assignment warning with clang mmc: host: sdhci-msm-ice: Fix clang warning with NOT operator usage driver : Fix warnings and errors with llvm soc: qcom: access smp2p_smem structure with I/O function Makefile: Disable undefined-optimized and tautological features ANDROID_BUILD_TOP is deprecated. AndroidKernel: Update the LLVM path AndroidKernel: Add configuration for the LLVM path AndroidKernel: Add LLVM support for Kernel drivers: hwmon: Fix compilation errors in ADC for kernel 4.9 msm: camera: Fix warnings and errors with llvm f_qc_rndis: Remove unused structure crypto: qcedev: Fix out of memory issue crypto: msm: update QTI crypto drivers for msm-4.4 fbdev: msm: wait for frame complete before triggering dma cmd msm: mdss: hdmi: don't reset CEC while triggering message send fbdev: msm: Fix race condition during te_irq calls msm: camera: Fix OOB issue in IR CUT driver Change-Id: Ib371d4baa8840eabda4bd825d3abcd86e79d5c7a
| * | | ARM: convert to generated system call tablesRussell King2020-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert ARM to use a similar mechanism to x86 to generate the unistd.h system call numbers and the various kernel system call tables. This means that rather than having to edit three places (asm/unistd.h for the total number of system calls, uapi/asm/unistd.h for the system call numbers, and arch/arm/kernel/calls.S for the call table) we have only one place to edit, making the process much more simple. The scripts have knowledge of the table padding requirements, so there's no need to worry about __NR_syscalls not fitting within the immediate constant field of ALU instructions anymore. Change-Id: Ie70e712b4779601beaeb4f660b8fa910a159ce87 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Git-Commit: 96a8fae0fe094b6a26a3ec88b2f097418f269cfe Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [schikk@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
| * | | ARM: remove indirection of asm/mach-types.hRussell King2020-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arrange for mach-types.h to be directly generated in the relevant path, so we don't need a one-liner file in arch/arm/include/asm/. Change-Id: I4693b7279625fdcbf5d99902af40968414fc998a Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Git-Commit: 4e2648db9c5f7b2281551694597102612f54460d Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [schikk@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
* | | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-03-08
|\ \ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05200-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 4db1ebdd40ec0 FROMLIST: HID: nintendo: add nintendo switch controller driver Conflicts: arch/arm64/boot/Makefile arch/arm64/kernel/psci.c arch/x86/configs/x86_64_cuttlefish_defconfig drivers/md/dm.c drivers/of/Kconfig drivers/thermal/thermal_core.c fs/proc/meminfo.c kernel/locking/spinlock_debug.c kernel/time/hrtimer.c net/wireless/util.c Change-Id: I5b5163497b7c6ab8487ffbb2d036e4cda01ed670
| * | | Merge 4.4.212 into android-4.4-pGreg Kroah-Hartman2020-01-29
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.212 xfs: Sanity check flags of Q_XQUOTARM call powerpc/archrandom: fix arch_get_random_seed_int() mt7601u: fix bbp version check in mt7601u_wait_bbp_ready drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset() ALSA: hda: fix unused variable warning ALSA: usb-audio: update quirk for B&W PX to remove microphone staging: comedi: ni_mio_common: protect register write overflow pcrypt: use format specifier in kobject_add exportfs: fix 'passing zero to ERR_PTR()' warning drm/dp_mst: Skip validating ports during destruction, just ref pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field pinctrl: sh-pfc: sh7734: Add missing IPSR11 field pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value Input: nomadik-ske-keypad - fix a loop timeout test clk: highbank: fix refcount leak in hb_clk_init() clk: qoriq: fix refcount leak in clockgen_init() clk: socfpga: fix refcount leak clk: samsung: exynos4: fix refcount leak in exynos4_get_xom() clk: imx6q: fix refcount leak in imx6q_clocks_init() clk: imx6sx: fix refcount leak in imx6sx_clocks_init() clk: imx7d: fix refcount leak in imx7d_clocks_init() clk: vf610: fix refcount leak in vf610_clocks_init() clk: armada-370: fix refcount leak in a370_clk_init() clk: kirkwood: fix refcount leak in kirkwood_clk_init() clk: armada-xp: fix refcount leak in axp_clk_init() IB/usnic: Fix out of bounds index check in query pkey RDMA/ocrdma: Fix out of bounds index check in query pkey media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL crypto: tgr192 - fix unaligned memory access ASoC: imx-sgtl5000: put of nodes if finding codec fails rtc: cmos: ignore bogus century byte tty: ipwireless: Fix potential NULL pointer dereference rtc: ds1672: fix unintended sign extension rtc: 88pm860x: fix unintended sign extension rtc: 88pm80x: fix unintended sign extension rtc: pm8xxx: fix unintended sign extension fbdev: chipsfb: remove set but not used variable 'size' pinctrl: sh-pfc: emev2: Add missing pinmux functions pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups block: don't use bio->bi_vcnt to figure out segment number vfio_pci: Enable memory accesses before calling pci_map_rom cdc-wdm: pass return value of recover_from_urb_loss drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON drm/nouveau/pmu: don't print reply values if exec is false ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of() fs/nfs: Fix nfs_parse_devname to not modify it's argument clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA nios2: ksyms: Add missing symbol exports scsi: megaraid_sas: reduce module load time xen, cpu_hotplug: Prevent an out of bounds access net: sh_eth: fix a missing check of of_get_phy_mode media: ivtv: update *pos correctly in ivtv_read_pos() media: cx18: update *pos correctly in cx18_read_pos() media: wl128x: Fix an error code in fm_download_firmware() media: cx23885: check allocation return jfs: fix bogus variable self-initialization m68k: mac: Fix VIA timer counter accesses ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset() media: davinci-isif: avoid uninitialized variable use spi: tegra114: clear packed bit for unpacked mode spi: tegra114: fix for unpacked mode transfers soc/fsl/qe: Fix an error code in qe_pin_request() spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios ehea: Fix a copy-paste err in ehea_init_port_res scsi: qla2xxx: Unregister chrdev if module initialization fails ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data" hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses tipc: set sysctl_tipc_rmem and named_timeout right range powerpc: vdso: Make vdso32 installation conditional in vdso_install media: ov2659: fix unbalanced mutex_lock/unlock 6lowpan: Off by one handling ->nexthdr dmaengine: axi-dmac: Don't check the number of frames for alignment ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk() packet: in recvmsg msg_name return at least sizeof sockaddr_ll ASoC: fix valid stream condition IB/mlx5: Add missing XRC options to QP optional params mask iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU media: omap_vout: potential buffer overflow in vidioc_dqbuf() media: davinci/vpbe: array underflow in vpbe_enum_outputs() platform/x86: alienware-wmi: printing the wrong error code netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule ARM: riscpc: fix lack of keyboard interrupts after irq conversion kdb: do a sanity check on the cpu in kdb_per_cpu() backlight: lm3630a: Return 0 on success in update_status functions thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power spi: spi-fsl-spi: call spi_finalize_current_message() at the end misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa iommu: Use right function to get group for device signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig inet: frags: call inet_frags_fini() after unregister_pernet_subsys() media: vivid: fix incorrect assignment operation when setting video mode powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild drm/msm/mdp5: Fix mdp5_cfg_init error return net/af_iucv: always register net_device notifier ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs rtc: pcf8563: Clear event flags and disable interrupts before requesting irq drm/msm/a3xx: remove TPL1 regs from snapshot iommu/amd: Make iommu_disable safer mfd: intel-lpss: Release IDA resources devres: allow const resource arguments net: pasemi: fix an use-after-free in pasemi_mac_phy_init() scsi: libfc: fix null pointer dereference on a null lport libertas_tf: Use correct channel range in lbtf_geo_init usb: host: xhci-hub: fix extra endianness conversion mic: avoid statically declaring a 'struct device'. x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI ALSA: aoa: onyx: always initialize register read value cifs: fix rmmod regression in cifs.ko caused by force_sig changes crypto: caam - free resources in case caam_rng registration failed ext4: set error return correctly when ext4_htree_store_dirent fails ASoC: es8328: Fix copy-paste error in es8328_right_line_controls ASoC: cs4349: Use PM ops 'cs4349_runtime_pm' ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls signal: Allow cifs and drbd to receive their terminating signals dmaengine: dw: platform: Switch to acpi_dma_controller_register() mac80211: minstrel_ht: fix per-group max throughput rate initialization mips: avoid explicit UB in assignment of mips_io_port_base ahci: Do not export local variable ahci_em_messages Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()" power: supply: Init device wakeup after device_add() x86, perf: Fix the dependency of the x86 insn decoder selftest bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA iio: dac: ad5380: fix incorrect assignment to val ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init net: sonic: return NETDEV_TX_OK if failed to map buffer Btrfs: fix hang when loading existing inode cache off disk hwmon: (shtc1) fix shtc1 and shtw1 id mask net: sonic: replace dev_kfree_skb in sonic_send_packet net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names' iommu/amd: Wait for completion of IOTLB flush in attach_device net: hisilicon: Fix signedness bug in hix5hd2_dev_probe() net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe() net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse() mac80211: accept deauth frames in IBSS mode llc: fix another potential sk_buff leak in llc_ui_sendmsg() llc: fix sk_buff refcounting in llc_conn_state_process() net: stmmac: fix length of PTP clock's name string drm/msm/dsi: Implement reset correctly dmaengine: imx-sdma: fix size check for sdma script_number net: qca_spi: Move reset_count to struct qcaspi media: ov6650: Fix incorrect use of JPEG colorspace media: ov6650: Fix some format attributes not under control media: ov6650: Fix .get_fmt() V4L2_SUBDEV_FORMAT_TRY support MIPS: Loongson: Fix return value of loongson_hwmon_init net: neigh: use long type to store jiffies delta packet: fix data-race in fanout_flow_is_huge() dmaengine: ti: edma: fix missed failure handling drm/radeon: fix bad DMA from INTERRUPT_CNTL2 arm64: dts: juno: Fix UART frequency m68k: Call timer_interrupt() with interrupts disabled can, slip: Protect tty->disc_data in write_wakeup and close with RCU firestream: fix memory leaks net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM net, ip_tunnel: fix namespaces move net_sched: fix datalen for ematch net: usb: lan78xx: Add .ndo_features_check hwmon: (adt7475) Make volt2reg return same reg as reg2volt input Input: keyspan-remote - fix control-message timeouts ARM: 8950/1: ftrace/recordmcount: filter relocation types mmc: sdhci: fix minimum clock rate for v3 controller Input: sur40 - fix interface sanity checks Input: gtco - fix endpoint sanity check Input: aiptek - fix endpoint sanity check hwmon: (nct7802) Fix voltage limits to wrong registers scsi: RDMA/isert: Fix a recently introduced regression related to logout tracing: xen: Ordered comparison of function pointers do_last(): fetch directory ->i_mode and ->i_uid before it's too late iio: buffer: align the size of scan bytes to size of the largest element scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func md: Avoid namespace collision with bitmap API bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free() netfilter: ipset: use bitmap infrastructure completely net/x25: fix nonblocking connect libertas: Fix two buffer overflows at parsing bss descriptor Linux 4.4.212 Change-Id: Ic427b213b19cb47b394a4ddc4ed48c7278376c71 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| | * | ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is usedMarek Szyprowski2020-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit ca70ea43f80c98582f5ffbbd1e6f4da2742da0c4 ] MCPM does a soft reset of the CPUs and uses common cpu_resume() routine to perform low-level platform initialization. This results in a try to install HYP stubs for the second time for each CPU and results in false HYP/SVC mode mismatch detection. The HYP stubs are already installed at the beginning of the kernel initialization on the boot CPU (head.S) or in the secondary_startup() for other CPUs. To fix this issue MCPM code should use a cpu_resume() routine without HYP stubs installation. This change fixes HYP/SVC mode mismatch on Samsung Exynos5422-based Odroid XU3/XU4/HC1 boards. Fixes: 3721924c8154 ("ARM: 8081/1: MCPM: provide infrastructure to allow for MCPM loopback") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Nicolas Pitre <nico@linaro.org> Tested-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
| * | | Merge 4.4.207 into android-4.4-pGreg Kroah-Hartman2019-12-21
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.207 x86/apic/32: Avoid bogus LDR warnings usb: gadget: u_serial: add missing port entry locking tty: serial: msm_serial: Fix flow control x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect serial: serial_core: Perform NULL checks for break_ctl ops serial: ifx6x60: add missed pm_runtime_disable autofs: fix a leak in autofs_expire_indirect() NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error Input: cyttsp4_core - fix use after free bug ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() rsxx: add missed destroy_workqueue calls in remove net: ep93xx_eth: fix mismatch of request_mem_region in remove serial: core: Allow processing sysrq at port unlock time iwlwifi: mvm: Send non offchannel traffic via AP sta ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+ extcon: max8997: Fix lack of path setting in USB device mode clk: rockchip: fix rk3188 sclk_smc gate data clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering dlm: fix missing idr_destroy for recover_idr MIPS: SiByte: Enable ZONE_DMA32 for LittleSur scsi: zfcp: drop default switch case which might paper over missing case pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues Staging: iio: adt7316: Fix i2c data reading, set the data field regulator: Fix return value of _set_load() stub MIPS: OCTEON: octeon-platform: fix typing math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()' rtc: dt-binding: abx80x: fix resistance scale ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module dmaengine: coh901318: Fix a double-lock bug dmaengine: coh901318: Remove unused variable ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion() dma-mapping: fix return type of dma_set_max_seg_size() altera-stapl: check for a null key before strcasecmp'ing it serial: imx: fix error handling in console_setup i2c: imx: don't print error message on probe defer dlm: NULL check before kmem_cache_destroy is not needed nfsd: fix a warning in __cld_pipe_upcall() ARM: OMAP1/2: fix SoC name printing net/x25: fix called/calling length calculation in x25_parse_address_block net/x25: fix null_x25_address handling ARM: dts: mmp2: fix the gpio interrupt cell number tcp: fix off-by-one bug on aborting window-probing socket modpost: skip ELF local symbols during section mismatch check kbuild: fix single target build for external module ARM: dts: pxa: clean up USB controller nodes dlm: fix invalid cluster name warning powerpc/math-emu: Update macros from GCC MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition nfsd: Return EPERM, not EACCES, in some SETATTR cases mlx4: Use snprintf instead of complicated strcpy ARM: dts: sunxi: Fix PMU compatible strings sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision fuse: verify nlink fuse: verify attributes ALSA: pcm: oss: Avoid potential buffer overflows Input: goodix - add upside-down quirk for Teclast X89 tablet CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks CIFS: Fix SMB2 oplock break processing tty: vt: keyboard: reject invalid keycodes can: slcan: Fix use-after-free Read in slcan_open jbd2: Fix possible overflow in jbd2_log_space_left() drm/i810: Prevent underflow in ioctl KVM: x86: do not modify masked bits of shared MSRs KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr crypto: user - fix memory leak in crypto_report spi: atmel: Fix CS high support RDMA/qib: Validate ->show()/store() callbacks before calling them thermal: Fix deadlock in thermal thermal_zone_device_check KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332) appletalk: Fix potential NULL pointer dereference in unregister_snap_client appletalk: Set error code if register_snap_client failed ALSA: hda - Fix pending unsol events at shutdown sched/core: Allow putting thread_info into task_struct sched/core: Add try_get_task_stack() and put_task_stack() sched/core, x86: Make struct thread_info arch specific again fs/proc: Stop reporting eip and esp in /proc/PID/stat fs/proc: Report eip/esp in /prod/PID/stat for coredumping proc: fix coredump vs read /proc/*/stat race fs/proc/array.c: allow reporting eip/esp for all coredumping threads usb: gadget: configfs: Fix missing spin_lock_init() usb: Allow USB device to be warm reset in suspended state staging: rtl8188eu: fix interface sanity check staging: rtl8712: fix interface sanity check staging: gigaset: fix general protection fault on probe staging: gigaset: fix illegal free on probe errors staging: gigaset: add endpoint-type sanity check xhci: Increase STS_HALT timeout in xhci_suspend() iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting USB: atm: ueagle-atm: add missing endpoint check USB: idmouse: fix interface sanity checks USB: serial: io_edgeport: fix epic endpoint lookup USB: adutux: fix interface sanity check usb: core: urb: fix URB structure initialization function usb: mon: Fix a deadlock in usbmon between mmap and read mtd: spear_smi: Fix Write Burst mode virtio-balloon: fix managed page counts when migrating pages between zones btrfs: check page->mapping when loading free space cache btrfs: Remove btrfs_bio::flags member rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer rtlwifi: rtl8192de: Fix missing enable interrupt flag lib: raid6: fix awk build warnings workqueue: Fix spurious sanity check failures in destroy_workqueue() workqueue: Fix pwq ref leak in rescuer_thread() ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report blk-mq: avoid sysfs buffer overflow with too many CPU cores cgroup: pids: use atomic64_t for pids->limit ar5523: check NULL before memcpy() in ar5523_cmd() media: bdisp: fix memleak on release media: radio: wl1273: fix interrupt masking on release cpuidle: Do not unset the driver if it is there already ACPI: OSL: only free map once in osl.c ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() ACPI: PM: Avoid attaching ACPI PM domain to certain devices pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init pinctrl: samsung: Fix device node refcount leaks in init code powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB video/hdmi: Fix AVI bar unpack quota: Check that quota is not dirty before release quota: fix livelock in dquot_writeback_dquots scsi: zfcp: trace channel log even for FCP command responses usb: xhci: only set D3hot for pci device xhci: Fix memory leak in xhci_add_in_port() xhci: make sure interrupts are restored to correct state iio: adis16480: Add debugfs_reg_access entry Btrfs: fix negative subv_writers counter and data space leak after buffered write scsi: lpfc: Cap NPIV vports to 256 e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init scsi: qla2xxx: Fix DMA unmap leak scsi: qla2xxx: Fix qla24xx_process_bidir_cmd() scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value powerpc: Fix vDSO clock_getres() mm/shmem.c: cast the type of unmap_start to u64 blk-mq: make sure that line break can be printed workqueue: Fix missing kfree(rescuer) in destroy_workqueue() sunrpc: fix crash when cache_head become valid before update kernel/module.c: wakeup processes in module_wq on module unload net: bridge: deny dev_set_mac_address() when unregistering tcp: md5: fix potential overestimation of TCP option space tipc: fix ordering of tipc module init and exit routine inet: protect against too small mtu values. tcp: fix rejected syncookies due to stale timestamps tcp: tighten acceptance of ACKs not matching a child socket tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE() net: ethernet: ti: cpsw: fix extra rx interrupt PCI: Fix Intel ACS quirk UPDCR register address PCI/MSI: Fix incorrect MSI-X masking on resume xtensa: fix TLB sanity checker CIFS: Respect O_SYNC and O_DIRECT flags during reconnect ARM: dts: s3c64xx: Fix init order of clock providers ARM: tegra: Fix FLOW_CTLR_HALT register clobbering by tegra_resume() vfio/pci: call irq_bypass_unregister_producer() before freeing irq dm btree: increase rebalance threshold in __rebalance2() drm/radeon: fix r1xx/r2xx register checker for POT textures xhci: fix USB3 device initiated resume race with roothub autosuspend net: stmmac: use correct DMA buffer size in the RX descriptor net: stmmac: don't stop NAPI processing when dropping a packet Linux 4.4.207 Change-Id: I2505ee1dcf004c7f28e711cd71977ea33150e733 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| | * | ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+Vincent Whitchurch2019-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 344eb5539abf3e0b6ce22568c03e86450073e097 ] getuser() and putuser() (and there underscored variants) use two strb[t]/ldrb[t] instructions when they are asked to get/put 16-bits. This means that the read/write is not atomic even when performed to a 16-bit-aligned address. This leads to problems with vhost: vhost uses __getuser() to read the vring's 16-bit avail.index field, and if it happens to observe a partial update of the index, wrong descriptors will be used which will lead to a breakdown of the virtio communication. A similar problem exists for __putuser() which is used to write to the vring's used.index field. The reason these functions use strb[t]/ldrb[t] is because strht/ldrht instructions did not exist until ARMv6T2/ARMv7. So we should be easily able to fix this on ARMv7. Also, since all ARMv6 processors also don't actually use the unprivileged instructions anymore for uaccess (since CONFIG_CPU_USE_DOMAINS is not used) we can easily fix them too. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | | | ANDROID: clock_gettime(CLOCK_BOOTTIME,) slows down >20xMark Salyzyn2019-12-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clock_gettime(CLOCK_BOOTTIME,) slows down after significant accumulation of suspend time creating a large offset between it and CLOCK_MONOTONIC time. The __iter_div_u64_rem() is only for the usage of adding a few second+nanosecond times and saving cycles on more expensive remainder and division operations, but iterates one second at a time which quickly goes out of scale in CLOCK_BOOTTIME's case since it was specified as nanoseconds only. The fix is to split off seconds from the boot time and cap the nanoseconds so that __iter_div_u64_rem does not iterate. Signed-off-by: Mark Salyzyn <salyzyn@google.com> Bug: 72406285 Change-Id: Ia647ef1e76b7ba3b0c003028d4b3b955635adabb
* | | | FROMLIST: [PATCH v5 11/12] lib: vdso: Add support for CLOCK_BOOTTIMEMark Salyzyn2019-12-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (cherry pick from url https://patchwork.kernel.org/patch/10044503/) Take an effort to recode the arm64 vdso code from assembler to C previously submitted by Andrew Pinski <apinski@cavium.com>, rework it for use in both arm and arm64, overlapping any optimizations for each architecture. But instead of landing it in arm64, land the result into lib/vdso and unify both implementations to simplify future maintenance. Add a case for CLOCK_BOOTTIME as it is popular for measuring relative time on systems expected to suspend() or hibernate(). Android uses CLOCK_BOOTTIME for all relative time measurements and timeouts. Switching to vdso reduced CPU utilization and improves accuracy. There is also a desire by some partners to switch all logging over to CLOCK_BOOTTIME, and thus this operation alone would contribute to a near percentile CPU load. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: James Morse <james.morse@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dmitry Safonov <dsafonov@virtuozzo.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Gross <andy.gross@linaro.org> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Andrew Pinski <apinski@cavium.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Bug: 63737556 Bug: 20045882 Change-Id: I76c26b054baf7f1100e03c65d6b16fe649b883b1
* | | | FROMLIST: [PATCH v6 05/12] arm: vdso: Add support for CLOCK_MONOTONIC_RAWMark Salyzyn2019-12-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (cherry pick from url https://patchwork.kernel.org/patch/10052099/) Take an effort to recode the arm64 vdso code from assembler to C previously submitted by Andrew Pinski <apinski@cavium.com>, rework it for use in both arm and arm64, overlapping any optimizations for each architecture. But instead of landing it in arm64, land the result into lib/vdso and unify both implementations to simplify future maintenance. Add a case for CLOCK_MONOTONIC_RAW to match up with support that is available in arm64's vdso. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: James Morse <james.morse@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dmitry Safonov <dsafonov@virtuozzo.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Gross <andy.gross@linaro.org> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Andrew Pinski <apinski@cavium.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Bug: 63737556 Bug: 20045882 Change-Id: If9c09d131e236ba4a483dbc122e6b876f471df72
* | | | FROMLIST: [PATCH v5 04/12] arm: vdso: do calculations outside reader loopsMark Salyzyn2019-12-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (cherry picked from url https://patchwork.kernel.org/patch/10044477/) Take an effort to recode the arm64 vdso code from assembler to C previously submitted by Andrew Pinski <apinski@cavium.com>, rework it for use in both arm and arm64, overlapping any optimizations for each architecture. But instead of landing it in arm64, land the result into lib/vdso and unify both implementations to simplify future maintenance. In variable timer reading loops, pick up just the values until all are synchronized, then outside of loop pick up cntvct and perform calculations to determine final offset, shifted and multiplied output value. This replaces get_ns with get_clock_shifted_nsec as cntvct reader. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: James Morse <james.morse@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dmitry Safonov <dsafonov@virtuozzo.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Gross <andy.gross@linaro.org> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Andrew Pinski <apinski@cavium.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Bug: 63737556 Bug: 20045882 Change-Id: I8008197f08485ef89b267128e41624ff69c33f6b
* | | | FROMLIST: [PATCH v5 01/12] arm: vdso: rename vdso_datapage variablesMark Salyzyn2019-12-23
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (cherry picked from url https://patchwork.kernel.org/patch/10044505/) Take an effort to recode the arm64 vdso code from assembler to C previously submitted by Andrew Pinski <apinski@cavium.com>, rework it for use in both arm and arm64, overlapping any optimizations for each architecture. But instead of landing it in arm64, land the result into lib/vdso and unify both implementations to simplify future maintenance. Rename seq_count to tb_seq_count. Rename tk_is_cntvct to use_syscall. Rename cs_mult to cs_mono_mult. All to align with the variables in the arm64 vdso datapage. Rework vdso_read_begin() and vdso_read_retry() functions to reflect modern access patterns for tb_seq_count field. Update copyright message to reflect the start of the contributions in this series. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: James Morse <james.morse@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dmitry Safonov <dsafonov@virtuozzo.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Gross <andy.gross@linaro.org> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Andrew Pinski <apinski@cavium.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Bug: 63737556 Bug: 20045882 Change-Id: I13f16e71b1ecba3d72b999caafef72e3c7f48dfe
* | | Merge android-4.4-p.200 (903fbe7) into msm-4.4Srinivasarao P2019-11-13
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * refs/heads/tmp-903fbe7 Linux 4.4.200 alarmtimer: Change remaining ENOTSUPP to EOPNOTSUPP ARM: fix the cockup in the previous patch ARM: ensure that processor vtables is not lost after boot ARM: spectre-v2: per-CPU vtables to work around big.Little systems ARM: add PROC_VTABLE and PROC_TABLE macros ARM: clean up per-processor check_bugs method call ARM: split out processor lookup ARM: make lookup_processor_type() non-__init ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization ARM: 8795/1: spectre-v1.1: use put_user() for __put_user() ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit ARM: 8793/1: signal: replace __put_user_error with __put_user ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user() ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state ARM: 8789/1: signal: copy registers using __copy_to_user() ARM: spectre-v1: mitigate user accesses ARM: spectre-v1: use get_user() for __get_user() ARM: use __inttype() in get_user() ARM: oabi-compat: copy semops using __copy_from_user() ARM: vfp: use __copy_from_user() when restoring VFP state ARM: signal: copy registers using __copy_from_user() ARM: spectre-v1: fix syscall entry ARM: spectre-v1: add array_index_mask_nospec() implementation ARM: spectre-v1: add speculation barrier (csdb) macros ARM: spectre-v2: warn about incorrect context switching functions ARM: spectre-v2: add firmware based hardening ARM: spectre-v2: harden user aborts in kernel space ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit ARM: spectre-v2: harden branch predictor on context switches ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre ARM: bugs: add support for per-processor bug checking ARM: bugs: hook processor bug checking into SMP and suspend paths ARM: bugs: prepare processor bug infrastructure ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs arm/arm64: smccc-1.1: Handle function result as parameters arm/arm64: smccc-1.1: Make return values unsigned long arm/arm64: smccc: Add SMCCC-specific return codes arm/arm64: smccc: Implement SMCCC v1.1 inline primitive arm/arm64: smccc: Make function identifiers an unsigned quantity firmware/psci: Expose SMCCC version through psci_ops firmware/psci: Expose PSCI conduit arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support arm/arm64: KVM: Advertise SMCCC v1.1 ARM: Move system register accessors to asm/cp15.h ARM: uaccess: remove put_user() code duplication ARM: 8481/2: drivers: psci: replace psci firmware calls ARM: 8480/2: arm64: add implementation for arm-smccc ARM: 8479/2: add implementation for arm-smccc ARM: 8478/2: arm/arm64: add arm-smccc ARM: 8051/1: put_user: fix possible data corruption in put_user dmaengine: qcom: bam_dma: Fix resource leak net/flow_dissector: switch to siphash inet: stop leaking jiffies on the wire net/mlx4_core: Dynamically set guaranteed amount of counters per VF vxlan: check tun_info options_len properly net: add READ_ONCE() annotation in __skb_wait_for_more_packets() net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol() net: hisilicon: Fix ping latency when deal with high throughput net: fix sk_page_frag() recursion from memory reclaim dccp: do not leak jiffies on the wire cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs MIPS: bmips: mark exception vectors as char arrays of: unittest: fix memory leak in unittest_data_add scsi: target: core: Do not overwrite CDB byte 1 perf kmem: Fix memory leak in compact_gfp_flags() scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE scsi: sni_53c710: fix compilation error ARM: mm: fix alignment handler faults under memory pressure ARM: dts: logicpd-torpedo-som: Remove twl_keypad ASoc: rockchip: i2s: Fix RPM imbalance regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone kbuild: add -fcf-protection=none when using retpoline flags UPSTREAM: HID: steam: fix deadlock with input devices. UPSTREAM: HID: steam: fix boot loop with bluetooth firmware UPSTREAM: HID: steam: remove input device when a hid client is running. UPSTREAM: HID: steam: use hid_device.driver_data instead of hid_set_drvdata() UPSTREAM: HID: steam: add missing fields in client initialization UPSTREAM: HID: steam: add battery device. UPSTREAM: HID: add driver for Valve Steam Controller UPSTREAM: HID: sony: Fix memory corruption issue on cleanup. UPSTREAM: HID: sony: Fix race condition between rumble and device remove. UPSTREAM: HID: sony: remove redundant check for -ve err UPSTREAM: HID: sony: Make sure to unregister sensors on failure UPSTREAM: HID: sony: Make DS4 bt poll interval adjustable UPSTREAM: HID: sony: Set proper bit flags on DS4 output report UPSTREAM: HID: sony: DS4 use brighter LED colors UPSTREAM: HID: sony: Improve navigation controller axis/button mapping UPSTREAM: HID: sony: Use DS3 MAC address as unique identifier on USB UPSTREAM: HID: sony: Perform duplicate device check earlier on UPSTREAM: HID: sony: Expose DS3 motion sensors through separate device UPSTREAM: HID: sony: Print error on failure to active DS3 / Navigation controllers UPSTREAM: HID: sony: DS3 comply to Linux gamepad spec UPSTREAM: HID: sony: Mark DS4 touchpad device as a pointer UPSTREAM: HID: sony: Support motion sensor calibration on dongle UPSTREAM: HID: sony: Make work handling more generic UPSTREAM: HID: sony: Treat the ds4 dongle as a separate device UPSTREAM: HID: sony: Remove report descriptor fixup for DS4 UPSTREAM: HID: sony: Report hardware timestamp for DS4 sensor values UPSTREAM: HID: sony: Calibrate DS4 motion sensors UPSTREAM: HID: sony: Report DS4 motion sensors through a separate device UPSTREAM: HID: sony: Fix input device leak when connecting a DS4 twice using USB/BT UPSTREAM: HID: sony: Use LED_CORE_SUSPENDRESUME UPSTREAM: HID: sony: Ignore DS4 dongle reports when no device is connected UPSTREAM: HID: sony: Use DS4 MAC address as unique identifier on USB UPSTREAM: HID: sony: Fix error handling bug when touchpad registration fails UPSTREAM: HID: sony: Comply to Linux gamepad spec for DS4 UPSTREAM: HID: sony: Make the DS4 touchpad a separate device UPSTREAM: HID: sony: Fix memory issue when connecting device using both Bluetooth and USB UPSTREAM: HID: sony: Adjust value range for motion sensors UPSTREAM: HID: sony: Handle multiple touch events input record UPSTREAM: HID: sony: Send ds4 output reports on output end-point UPSTREAM: HID: sony: Perform CRC check on bluetooth input packets UPSTREAM: HID: sony: Adjust HID report size name definitions UPSTREAM: HID: sony: Fix race condition in sony_probe UPSTREAM: HID: sony: Update copyright and add Dualshock 4 rate control note UPSTREAM: HID: sony: Defer the initial USB Sixaxis output report UPSTREAM: HID: sony: Relax duplicate checking for USB-only devices UPSTREAM: HID: sony: underscores are unnecessary for u8, u16, s32 UPSTREAM: HID: sony: fix some warnings from scripts/checkpatch.pl UPSTREAM: HID: sony: fix errors from scripts/checkpatch.pl UPSTREAM: HID: sony: fix a typo in descriptors comments s/Joystik/Joystick/ UPSTREAM: HID: sony: Fixup output reports for the nyko core controller UPSTREAM: HID: sony: Remove the size check for the Dualshock 4 HID Descriptor UPSTREAM: HID: sony: Save and restore the controller state on suspend and resume UPSTREAM: HID: sony: Refactor the output report sending functions After resolving conflicts there is no effective change from this patch fs/dcache: move security_d_instantiate() behind attaching dentry to inode Conflicts: fs/dcache.c include/linux/arm-smccc.h include/linux/psci.h Change-Id: I092fea3b6c69f56639fdb9e511e011cbb326e2c7 Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
| * | Merge 4.4.200 into android-4.4-pGreg Kroah-Hartman2019-11-10
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.200 kbuild: add -fcf-protection=none when using retpoline flags regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized ASoc: rockchip: i2s: Fix RPM imbalance ARM: dts: logicpd-torpedo-som: Remove twl_keypad ARM: mm: fix alignment handler faults under memory pressure scsi: sni_53c710: fix compilation error scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE perf kmem: Fix memory leak in compact_gfp_flags() scsi: target: core: Do not overwrite CDB byte 1 of: unittest: fix memory leak in unittest_data_add MIPS: bmips: mark exception vectors as char arrays cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs dccp: do not leak jiffies on the wire net: fix sk_page_frag() recursion from memory reclaim net: hisilicon: Fix ping latency when deal with high throughput net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol() net: add READ_ONCE() annotation in __skb_wait_for_more_packets() vxlan: check tun_info options_len properly net/mlx4_core: Dynamically set guaranteed amount of counters per VF inet: stop leaking jiffies on the wire net/flow_dissector: switch to siphash dmaengine: qcom: bam_dma: Fix resource leak ARM: 8051/1: put_user: fix possible data corruption in put_user ARM: 8478/2: arm/arm64: add arm-smccc ARM: 8479/2: add implementation for arm-smccc ARM: 8480/2: arm64: add implementation for arm-smccc ARM: 8481/2: drivers: psci: replace psci firmware calls ARM: uaccess: remove put_user() code duplication ARM: Move system register accessors to asm/cp15.h arm/arm64: KVM: Advertise SMCCC v1.1 arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support firmware/psci: Expose PSCI conduit firmware/psci: Expose SMCCC version through psci_ops arm/arm64: smccc: Make function identifiers an unsigned quantity arm/arm64: smccc: Implement SMCCC v1.1 inline primitive arm/arm64: smccc: Add SMCCC-specific return codes arm/arm64: smccc-1.1: Make return values unsigned long arm/arm64: smccc-1.1: Handle function result as parameters ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs ARM: bugs: prepare processor bug infrastructure ARM: bugs: hook processor bug checking into SMP and suspend paths ARM: bugs: add support for per-processor bug checking ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre ARM: spectre-v2: harden branch predictor on context switches ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit ARM: spectre-v2: harden user aborts in kernel space ARM: spectre-v2: add firmware based hardening ARM: spectre-v2: warn about incorrect context switching functions ARM: spectre-v1: add speculation barrier (csdb) macros ARM: spectre-v1: add array_index_mask_nospec() implementation ARM: spectre-v1: fix syscall entry ARM: signal: copy registers using __copy_from_user() ARM: vfp: use __copy_from_user() when restoring VFP state ARM: oabi-compat: copy semops using __copy_from_user() ARM: use __inttype() in get_user() ARM: spectre-v1: use get_user() for __get_user() ARM: spectre-v1: mitigate user accesses ARM: 8789/1: signal: copy registers using __copy_to_user() ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user() ARM: 8793/1: signal: replace __put_user_error with __put_user ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit ARM: 8795/1: spectre-v1.1: use put_user() for __put_user() ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc ARM: make lookup_processor_type() non-__init ARM: split out processor lookup ARM: clean up per-processor check_bugs method call ARM: add PROC_VTABLE and PROC_TABLE macros ARM: spectre-v2: per-CPU vtables to work around big.Little systems ARM: ensure that processor vtables is not lost after boot ARM: fix the cockup in the previous patch alarmtimer: Change remaining ENOTSUPP to EOPNOTSUPP fs/dcache: move security_d_instantiate() behind attaching dentry to inode Linux 4.4.200 Change-Id: I6f7542c59929ba1043caf7414d5c0d0d86adaeca Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| | * ARM: spectre-v2: per-CPU vtables to work around big.Little systemsRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 383fb3ee8024d596f488d2dbaf45e572897acbdb upstream. In big.Little systems, some CPUs require the Spectre workarounds in paths such as the context switch, but other CPUs do not. In order to handle these differences, we need per-CPU vtables. We are unable to use the kernel's per-CPU variables to support this as per-CPU is not initialised at times when we need access to the vtables, so we have to use an array indexed by logical CPU number. We use an array-of-pointers to avoid having function pointers in the kernel's read/write .data section. Note: Added include of linux/slab.h in arch/arm/smp.c. Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: add PROC_VTABLE and PROC_TABLE macrosRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit e209950fdd065d2cc46e6338e47e52841b830cba upstream. Allow the way we access members of the processor vtable to be changed at compile time. We will need to move to per-CPU vtables to fix the Spectre variant 2 issues on big.Little systems. However, we have a couple of calls that do not need the vtable treatment, and indeed cause a kernel warning due to the (later) use of smp_processor_id(), so also introduce the PROC_TABLE macro for these which always use CPU 0's function pointers. Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: clean up per-processor check_bugs method callRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 945aceb1db8885d3a35790cf2e810f681db52756 upstream. Call the per-processor type check_bugs() method in the same way as we do other per-processor functions - move the "processor." detail into proc-fns.h. Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: split out processor lookupRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 65987a8553061515b5851b472081aedb9837a391 upstream. Split out the lookup of the processor type and associated error handling from the rest of setup_processor() - we will need to use this in the secondary CPU bringup path for big.Little Spectre variant 2 mitigation. Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitizationJulien Thierry2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit afaf6838f4bc896a711180b702b388b8cfa638fc upstream. Introduce C and asm helpers to sanitize user address, taking the address range they target into account. Use asm helper for existing sanitization in __copy_from_user(). Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: 8795/1: spectre-v1.1: use put_user() for __put_user()Julien Thierry2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit e3aa6243434fd9a82e84bb79ab1abd14f2d9a5a7 upstream. When Spectre mitigation is required, __put_user() needs to include check_uaccess. This is already the case for put_user(), so just make __put_user() an alias of put_user(). Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limitJulien Thierry2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 621afc677465db231662ed126ae1f355bf8eac47 upstream. A mispredicted conditional call to set_fs could result in the wrong addr_limit being forwarded under speculation to a subsequent access_ok check, potentially forming part of a spectre-v1 attack using uaccess routines. This patch prevents this forwarding from taking place, but putting heavy barriers in set_fs after writing the addr_limit. Porting commit c2f0ad4fc089cff8 ("arm64: uaccess: Prevent speculative use of the current addr_limit"). Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: 8791/1: vfp: use __copy_to_user() when saving VFP stateJulien Thierry2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 3aa2df6ec2ca6bc143a65351cca4266d03a8bc41 upstream. Use __copy_to_user() rather than __put_user_error() for individual members when saving VFP state. This has the benefit of disabling/enabling PAN once per copied struct intead of once per write. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: spectre-v1: mitigate user accessesRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a3c0f84765bb429ba0fd23de1c57b5e1591c9389 upstream. Spectre variant 1 attacks are about this sequence of pseudo-code: index = load(user-manipulated pointer); access(base + index * stride); In order for the cache side-channel to work, the access() must me made to memory which userspace can detect whether cache lines have been loaded. On 32-bit ARM, this must be either user accessible memory, or a kernel mapping of that same user accessible memory. The problem occurs when the load() speculatively loads privileged data, and the subsequent access() is made to user accessible memory. Any load() which makes use of a user-maniplated pointer is a potential problem if the data it has loaded is used in a subsequent access. This also applies for the access() if the data loaded by that access is used by a subsequent access. Harden the get_user() accessors against Spectre attacks by forcing out of bounds addresses to a NULL pointer. This prevents get_user() being used as the load() step above. As a side effect, put_user() will also be affected even though it isn't implicated. Also harden copy_from_user() by redoing the bounds check within the arm_copy_from_user() code, and NULLing the pointer if out of bounds. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: spectre-v1: use get_user() for __get_user()Russell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b1cd0a14806321721aae45f5446ed83a3647c914 upstream. Fixing __get_user() for spectre variant 1 is not sane: we would have to add address space bounds checking in order to validate that the location should be accessed, and then zero the address if found to be invalid. Since __get_user() is supposed to avoid the bounds check, and this is exactly what get_user() does, there's no point having two different implementations that are doing the same thing. So, when the Spectre workarounds are required, make __get_user() an alias of get_user(). Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: use __inttype() in get_user()Russell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d09fbb327d670737ab40fd8bbb0765ae06b8b739 upstream. Borrow the x86 implementation of __inttype() to use in get_user() to select an integer type suitable to temporarily hold the result value. This is necessary to avoid propagating the volatile nature of the result argument, which can cause the following warning: lib/iov_iter.c:413:5: warning: optimization may eliminate reads and/or writes to register variables [-Wvolatile-register-var] Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: vfp: use __copy_from_user() when restoring VFP stateRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 42019fc50dfadb219f9e6ddf4c354f3837057d80 upstream. __get_user_error() is used as a fast accessor to make copying structure members in the signal handling path as efficient as possible. However, with software PAN and the recent Spectre variant 1, the efficiency is reduced as these are no longer fast accessors. In the case of software PAN, it has to switch the domain register around each access, and with Spectre variant 1, it would have to repeat the access_ok() check for each access. Use __copy_from_user() rather than __get_user_err() for individual members when restoring VFP state. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: spectre-v1: add array_index_mask_nospec() implementationRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 1d4238c56f9816ce0f9c8dbe42d7f2ad81cb6613 upstream. Add an implementation of the array_index_mask_nospec() function for mitigating Spectre variant 1 throughout the kernel. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Mark Rutland <mark.rutland@arm.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: spectre-v1: add speculation barrier (csdb) macrosRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a78d156587931a2c3b354534aa772febf6c9e855 upstream. Add assembly and C macros for the new CSDB instruction. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Mark Rutland <mark.rutland@arm.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: spectre-v2: harden user aborts in kernel spaceRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f5fe12b1eaee220ce62ff9afb8b90929c396595f upstream. In order to prevent aliasing attacks on the branch predictor, invalidate the BTB or instruction cache on CPUs that are known to be affected when taking an abort on a address that is outside of a user task limit: Cortex A8, A9, A12, A17, A73, A75: flush BTB. Cortex A15, Brahma B15: invalidate icache. If the IBE bit is not set, then there is little point to enabling the workaround. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: bugs: add support for per-processor bug checkingRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 9d3a04925deeabb97c8e26d940b501a2873e8af3 upstream. Add support for per-processor bug checking - each processor function descriptor gains a function pointer for this check, which must not be an __init function. If non-NULL, this will be called whenever a CPU enters the kernel via which ever path (boot CPU, secondary CPU startup, CPU resuming, etc.) This allows processor specific bug checks to validate that workaround bits are properly enabled by firmware via all entry paths to the kernel. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: bugs: hook processor bug checking into SMP and suspend pathsRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 26602161b5ba795928a5a719fe1d5d9f2ab5c3ef upstream. Check for CPU bugs when secondary processors are being brought online, and also when CPUs are resuming from a low power mode. This gives an opportunity to check that processor specific bug workarounds are correctly enabled for all paths that a CPU re-enters the kernel. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: bugs: prepare processor bug infrastructureRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a5b9177f69329314721aa7022b7e69dab23fa1f0 upstream. Prepare the processor bug infrastructure so that it can be expanded to check for per-processor bugs. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: add more CPU part numbers for Cortex and Brahma B15 CPUsRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f5683e76f35b4ec5891031b6a29036efe0a1ff84 upstream. Add CPU part numbers for Cortex A53, A57, A72, A73, A75 and the Broadcom Brahma B15 CPU. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: Move system register accessors to asm/cp15.hVladimir Murzin2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4f2546384150e78cad8045e59a9587fabcd9f9fe upstream. Headers linux/irqchip/arm-gic.v3.h and arch/arm/include/asm/kvm_hyp.h are included in virt/kvm/arm/hyp/vgic-v3-sr.c and both define macros called __ACCESS_CP15 and __ACCESS_CP15_64 which obviously creates a conflict. These macros were introduced independently for GIC and KVM and, in fact, do the same thing. As an option we could add prefixes to KVM and GIC version of macros so they won't clash, but it'd introduce code duplication. Alternatively, we could keep macro in, say, GIC header and include it in KVM one (or vice versa), but such dependency would not look nicer. So we follow arm64 way (it handles this via sysreg.h) and move only single set of macros to asm/cp15.h Cc: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: uaccess: remove put_user() code duplicationRussell King2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 9f73bd8bb445e0cbe4bcef6d4cfc788f1e184007 upstream. Remove the code duplication between put_user() and __put_user(). The code which selected the implementation based upon the pointer size, and declared the local variable to hold the value to be put are common to both implementations. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * ARM: 8051/1: put_user: fix possible data corruption in put_userAndrey Ryabinin2019-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 537094b64b229bf3ad146042f83e74cf6abe59df upstream. According to arm procedure call standart r2 register is call-cloberred. So after the result of x expression was put into r2 any following function call in p may overwrite r2. To fix this, the result of p expression must be saved to the temporary variable before the assigment x expression to __r2. Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Reviewed-by: Nicolas Pitre <nico@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>