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* Merge 4.4.214 into android-4.4-pGreg Kroah-Hartman2020-02-17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.214 media: iguanair: fix endpoint sanity check x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR sparc32: fix struct ipc64_perm type definition ASoC: qcom: Fix of-node refcount unbalance to link->codec_of_node cls_rsvp: fix rsvp_policy net: hsr: fix possible NULL deref in hsr_handle_frame() net_sched: fix an OOB access in cls_tcindex tcp: clear tp->total_retrans in tcp_disconnect() tcp: clear tp->segs_{in|out} in tcp_disconnect() media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors mfd: dln2: More sanity checking for endpoints brcmfmac: Fix memory leak in brcmf_usbdev_qinit usb: gadget: legacy: set max_speed to super-speed usb: gadget: f_ncm: Use atomic_t to track in-flight request usb: gadget: f_ecm: Use atomic_t to track in-flight request ALSA: dummy: Fix PCM format loop in proc output lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more() powerpc/pseries: Advance pfn if section is not present in lmb_is_removable() mmc: spi: Toggle SPI polarity, do not hardcode it PCI: keystone: Fix link training retries initiation crypto: api - Check spawn->alg under lock in crypto_drop_spawn scsi: qla2xxx: Fix mtcp dump collection failure power: supply: ltc2941-battery-gauge: fix use-after-free Revert "ovl: modify ovl_permission() to do checks on two inodes" of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc dm space map common: fix to ensure new block isn't already in use crypto: pcrypt - Do not clear MAY_SLEEP flag in original request crypto: api - Fix race condition in crypto_spawn_alg crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill btrfs: set trans->drity in btrfs_commit_transaction ARM: tegra: Enable PLLP bypass during Tegra124 LP1 mwifiex: fix unbalanced locking in mwifiex_process_country_ie() sunrpc: expiry_time should be seconds not timeval KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks KVM: x86: Protect DR-based index computations from Spectre-v1/L1TF attacks KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks KVM: x86: Protect ioapic_write_indirect() from Spectre-v1/L1TF attacks KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks KVM: PPC: Book3S HV: Uninit vCPU if vcore creation fails KVM: PPC: Book3S PR: Free shared page if mmu initialization fails KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type scsi: csiostor: Adjust indentation in csio_device_reset scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free ext2: Adjust indentation in ext2_fill_super powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize NFC: pn544: Adjust indentation in pn544_hci_check_presence ppp: Adjust indentation into ppp_async_input net: smc911x: Adjust indentation in smc911x_phy_configure net: tulip: Adjust indentation in {dmfe, uli526x}_init_module mfd: da9062: Fix watchdog compatible string mfd: rn5t618: Mark ADC control register volatile net: systemport: Avoid RBUF stuck in Wake-on-LAN mode bonding/alb: properly access headers in bond_alb_xmit() NFS: Fix memory leaks and corruption in readdir NFS: Fix bool initialization/comparison NFS: Directory page cache pages need to be locked when read Btrfs: fix assertion failure on fsync with NO_HOLES enabled btrfs: remove trivial locking wrappers of tree mod log Btrfs: fix race between adding and putting tree mod seq elements and nodes drm: atmel-hlcdc: enable clock before configuring timing engine KVM: x86: drop picdev_in_range() KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks btrfs: flush write bio if we loop in extent_write_cache_pages KVM: x86/mmu: Apply max PA check for MMIO sptes to 32-bit KVM KVM: VMX: Add non-canonical check on writes to RTIT address MSRs KVM: nVMX: vmread should not set rflags to specify success in case of #PF cifs: fail i/o on soft mounts if sessionsetup errors out clocksource: Prevent double add_timer_on() for watchdog_timer perf/core: Fix mlock accounting in perf_mmap() ASoC: pcm: update FE/BE trigger order based on the command scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails rtc: hym8563: Return -EINVAL if the time is known to be invalid ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node ARM: dts: at91: sama5d3: fix maximum peripheral clock rates ARM: dts: at91: sama5d3: define clock rate range for tcb1 powerpc/pseries: Allow not having ibm, hypertas-functions::hcall-multi-tce for DDW pinctrl: sh-pfc: r8a7778: Fix duplicate SDSELF_B and SD1_CLK_B mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status() mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv() libertas: don't exit from lbs_ibss_join_existing() with RCU read lock held libertas: make lbs_ibss_join_existing() return error code on rates overflow dm: fix potential for q->make_request_fn NULL pointer Linux 4.4.214 Change-Id: I4c59fc6feb5cc34402bc8bbaf29f3d1debfe6951 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()Gustavo A. R. Silva2020-02-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 3e21d9a501bf99aee2e5835d7f34d8c823f115b5 upstream. In case memory resources for _ptr2_ were allocated, release them before return. Notice that in case _ptr1_ happens to be NULL, krealloc() behaves exactly like kmalloc(). Addresses-Coverity-ID: 1490594 ("Resource leak") Link: http://lkml.kernel.org/r/20200123160115.GA4202@embeddedor Fixes: 3f15801cdc23 ("lib: add kasan test module") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | BACKPORT: kasan: report only the first error by defaultMark Rutland2017-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Disable kasan after the first report. There are several reasons for this: - Single bug quite often has multiple invalid memory accesses causing storm in the dmesg. - Write OOB access might corrupt metadata so the next report will print bogus alloc/free stacktraces. - Reports after the first easily could be not bugs by itself but just side effects of the first one. Given that multiple reports usually only do harm, it makes sense to disable kasan after the first one. If user wants to see all the reports, the boot-time parameter kasan_multi_shot must be used. [aryabinin@virtuozzo.com: wrote changelog and doc, added missing include] Link: http://lkml.kernel.org/r/20170323154416.30257-1-aryabinin@virtuozzo.com Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from b0845ce58379d11dcad4cdb6824a6410de260216) Change-Id: Ia8c6d40dd0d4f5b944bf3501c08d7a825070b116 Signed-off-by: Paul Lawrence <paullawrence@google.com>
* | UPSTREAM: kasan: support use-after-scope detectionDmitry Vyukov2017-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gcc revision 241896 implements use-after-scope detection. Will be available in gcc 7. Support it in KASAN. Gcc emits 2 new callbacks to poison/unpoison large stack objects when they go in/out of scope. Implement the callbacks and add a test. [dvyukov@google.com: v3] Link: http://lkml.kernel.org/r/1479998292-144502-1-git-send-email-dvyukov@google.com Link: http://lkml.kernel.org/r/1479226045-145148-1-git-send-email-dvyukov@google.com Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: <stable@vger.kernel.org> [4.0+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from 828347f8f9a558cf1af2faa46387a26564f2ac3e) Change-Id: Ib9cb585efbe98ba11a7efbd233ebd97cb4214a92 Signed-off-by: Paul Lawrence <paullawrence@google.com>
* | UPSTREAM: kasan/tests: add tests for user memory access functionsAndrey Ryabinin2017-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some tests for the newly-added user memory access API. Link: http://lkml.kernel.org/r/1462538722-1574-1-git-send-email-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from eae08dcab80c695c16c9f1f7dcd5b8ed52bfc88b) Change-Id: I735c7b84a83c969df8105a129df7bbbed8d50cc0 Signed-off-by: Paul Lawrence <paullawrence@google.com>
* | UPSTREAM: mm, kasan: add a ksize() testAlexander Potapenko2017-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a test that makes sure ksize() unpoisons the whole chunk. Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Konstantin Serebryany <kcc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from 96fe805fb6fe9b2ed12fc54ad0e3e6829a4152cb) Change-Id: Ia468981e2ccc62bc1678449a65aab341a9e7ceba Signed-off-by: Paul Lawrence <paullawrence@google.com>
* | UPSTREAM: kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2Alexander Potapenko2017-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from 9dcadd381b1d199074937019d612346c061de415) Change-Id: I1111f642f21b3821d5e594e80d32db03fbce186c Signed-off-by: Paul Lawrence <paullawrence@google.com>
* | UPSTREAM: kasan: modify kmalloc_large_oob_right(), add ↵Alexander Potapenko2017-12-14
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kmalloc_pagealloc_oob_right() This patchset implements SLAB support for KASAN Unlike SLUB, SLAB doesn't store allocation/deallocation stacks for heap objects, therefore we reimplement this feature in mm/kasan/stackdepot.c. The intention is to ultimately switch SLUB to use this implementation as well, which will save a lot of memory (right now SLUB bloats each object by 256 bytes to store the allocation/deallocation stacks). Also neither SLUB nor SLAB delay the reuse of freed memory chunks, which is necessary for better detection of use-after-free errors. We introduce memory quarantine (mm/kasan/quarantine.c), which allows delayed reuse of deallocated memory. This patch (of 7): Rename kmalloc_large_oob_right() to kmalloc_pagealloc_oob_right(), as the test only checks the page allocator functionality. Also reimplement kmalloc_large_oob_right() so that the test allocates a large enough chunk of memory that still does not trigger the page allocator fallback. Signed-off-by: Alexander Potapenko <glider@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from e6e8379c876de16c6b78f83b15d5ac32c79cb440) Change-Id: Id711a46b1d85d84784bc599295d109f8f0c7f272 Signed-off-by: Paul Lawrence <paullawrence@google.com>
* lib: test_kasan: add some testcasesWang Long2015-11-05
| | | | | | | | | | Add some out of bounds testcases to test_kasan module. Signed-off-by: Wang Long <long.wanglong@huawei.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lib/test_kasan.c: make kmalloc_oob_krealloc_less more correctlyWang Long2015-09-10
| | | | | | | | | | | | | | | In kmalloc_oob_krealloc_less, I think it is better to test the size2 boundary. If we do not call krealloc, the access of position size1 will still cause out-of-bounds and access of position size2 does not. After call krealloc, the access of position size2 cause out-of-bounds. So using size2 is more correct. Signed-off-by: Wang Long <long.wanglong@huawei.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lib/test_kasan.c: fix a typoWang Long2015-09-10
| | | | | | | Signed-off-by: Wang Long <long.wanglong@huawei.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lib: add kasan test moduleAndrey Ryabinin2015-02-13
This is a test module doing various nasty things like out of bounds accesses, use after free. It is useful for testing kernel debugging features like kernel address sanitizer. It mostly concentrates on testing of slab allocator, but we might want to add more different stuff here in future (like stack/global variables out of bounds accesses and so on). Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrey Konovalov <adech.fo@gmail.com> Cc: Yuri Gribov <tetra2005@gmail.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Christoph Lameter <cl@linux.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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