| Commit message (Collapse) | Author | Age |
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commit c496ad835c31ad639b6865714270b3003df031f6 upstream.
Add the USB device id for the ELV TFD500 data logger.
Signed-off-by: Andreas Engel <anen-nospam@gmx.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a6c215e21b0dc5fe9416dce90f9acc2ea53c4502 upstream.
Add CYPRESS_VID vid and CYPRESS_WICED_BT_USB and CYPRESS_WICED_WL_USB
device IDs to ftdi_sio driver.
Signed-off-by: Jeffrey Chu <jeffrey.chu@cypress.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit aec17e1e249567e82b26dafbb86de7d07fde8729 upstream.
KASAN enabled configuration reports an error
BUG: KASAN: use-after-free in usb_composite_overwrite_options+...
[libcomposite] at addr ...
Read of size 1 by task ...
when some driver is un-bound and then bound again.
For example, this happens with FunctionFS driver when "ffs-test"
test application is run several times in a row.
If the driver has empty manufacturer ID string in initial static data,
it is then replaced with generated string. After driver unbinding
the generated string is freed, but the driver data still keep that
pointer. And if the driver is then bound again, that pointer
is re-used for string emptiness check.
The fix is to clean up the driver string data upon its unbinding
to drop the pointer to freed memory.
Fixes: cc2683c318a5 ("usb: gadget: Provide a default implementation of default manufacturer string")
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 29c7f3e68eec4ae94d85ad7b5dfdafdb8089f513 upstream.
The DREQE bit of the DnFIFOSEL should be set to 1 after the DE bit of
USB-DMAC on R-Car SoCs is set to 1 after the USB-DMAC received a
zero-length packet. Otherwise, a transfer completion interruption
of USB-DMAC doesn't happen. Even if the driver changes the sequence,
normal operations (transmit/receive without zero-length packet) will
not cause any side-effects. So, this patch fixes the sequence anyway.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[shimoda: revise the commit log]
Fixes: e73a9891b3a1 ("usb: renesas_usbhs: add DMAEngine support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ab219221a5064abfff9f78c323c4a257b16cdb81 upstream.
The dummy-hcd driver calls the gadget driver's disconnect callback
under the wrong conditions. It should invoke the callback when Vbus
power is turned off, but instead it does so when the D+ pullup is
turned off.
This can cause a deadlock in the composite core when a gadget driver
is unregistered:
[ 88.361471] ============================================
[ 88.362014] WARNING: possible recursive locking detected
[ 88.362580] 4.14.0-rc2+ #9 Not tainted
[ 88.363010] --------------------------------------------
[ 88.363561] v4l_id/526 is trying to acquire lock:
[ 88.364062] (&(&cdev->lock)->rlock){....}, at: [<ffffffffa0547e03>] composite_disconnect+0x43/0x100 [libcomposite]
[ 88.365051]
[ 88.365051] but task is already holding lock:
[ 88.365826] (&(&cdev->lock)->rlock){....}, at: [<ffffffffa0547b09>] usb_function_deactivate+0x29/0x80 [libcomposite]
[ 88.366858]
[ 88.366858] other info that might help us debug this:
[ 88.368301] Possible unsafe locking scenario:
[ 88.368301]
[ 88.369304] CPU0
[ 88.369701] ----
[ 88.370101] lock(&(&cdev->lock)->rlock);
[ 88.370623] lock(&(&cdev->lock)->rlock);
[ 88.371145]
[ 88.371145] *** DEADLOCK ***
[ 88.371145]
[ 88.372211] May be due to missing lock nesting notation
[ 88.372211]
[ 88.373191] 2 locks held by v4l_id/526:
[ 88.373715] #0: (&(&cdev->lock)->rlock){....}, at: [<ffffffffa0547b09>] usb_function_deactivate+0x29/0x80 [libcomposite]
[ 88.374814] #1: (&(&dum_hcd->dum->lock)->rlock){....}, at: [<ffffffffa05bd48d>] dummy_pullup+0x7d/0xf0 [dummy_hcd]
[ 88.376289]
[ 88.376289] stack backtrace:
[ 88.377726] CPU: 0 PID: 526 Comm: v4l_id Not tainted 4.14.0-rc2+ #9
[ 88.378557] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 88.379504] Call Trace:
[ 88.380019] dump_stack+0x86/0xc7
[ 88.380605] __lock_acquire+0x841/0x1120
[ 88.381252] lock_acquire+0xd5/0x1c0
[ 88.381865] ? composite_disconnect+0x43/0x100 [libcomposite]
[ 88.382668] _raw_spin_lock_irqsave+0x40/0x54
[ 88.383357] ? composite_disconnect+0x43/0x100 [libcomposite]
[ 88.384290] composite_disconnect+0x43/0x100 [libcomposite]
[ 88.385490] set_link_state+0x2d4/0x3c0 [dummy_hcd]
[ 88.386436] dummy_pullup+0xa7/0xf0 [dummy_hcd]
[ 88.387195] usb_gadget_disconnect+0xd8/0x160 [udc_core]
[ 88.387990] usb_gadget_deactivate+0xd3/0x160 [udc_core]
[ 88.388793] usb_function_deactivate+0x64/0x80 [libcomposite]
[ 88.389628] uvc_function_disconnect+0x1e/0x40 [usb_f_uvc]
This patch changes the code to test the port-power status bit rather
than the port-connect status bit when deciding whether to isue the
callback.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: David Tulloh <david@tulloh.id.au>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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For NCM gadget function, net device structure opts->net
will be freed when NCM unbind, but user space related
device node doesn't know it, will access net structre
without checking it exist or not, finally lead to crash.
Fix this by adding check gadget function bind or not.
Change-Id: I6af9e3868f71e7fa923600721e1f716508de9b55
Signed-off-by: Liangliang Lu <luliang@codeaurora.org>
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* refs/heads/tmp-73a2b70
Linux 4.4.92
ext4: don't allow encrypted operations without keys
ext4: Don't clear SGID when inheriting ACLs
ext4: fix data corruption for mmap writes
sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs
nvme: protect against simultaneous shutdown invocations
drm/i915/bios: ignore HDMI on port A
brcmfmac: setup passive scan if requested by user-space
uwb: ensure that endpoint is interrupt
uwb: properly check kthread_run return value
iio: adc: mcp320x: Fix oops on module unload
iio: adc: mcp320x: Fix readout of negative voltages
iio: ad7793: Fix the serial interface reset
iio: core: Return error for failed read_reg
staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.
iio: ad_sigma_delta: Implement a dedicated reset function
iio: adc: twl4030: Disable the vusb3v1 rugulator in the error handling path of 'twl4030_madc_probe()'
iio: adc: twl4030: Fix an error handling path in 'twl4030_madc_probe()'
xhci: fix finding correct bus_state structure for USB 3.1 hosts
USB: fix out-of-bounds in usb_set_configuration
usb: Increase quirk delay for USB devices
USB: core: harden cdc_parse_cdc_header
USB: uas: fix bug in handling of alternate settings
scsi: sd: Do not override max_sectors_kb sysfs setting
iwlwifi: add workaround to disable wide channels in 5GHz
HID: i2c-hid: allocate hid buffers for real worst case
ftrace: Fix kmemleak in unregister_ftrace_graph
stm class: Fix a use-after-free
Drivers: hv: fcopy: restore correct transfer length
driver core: platform: Don't read past the end of "driver_override" buffer
ALSA: usx2y: Suppress kernel warning at page allocation failures
ALSA: compress: Remove unused variable
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
USB: g_mass_storage: Fix deadlock when driver is unbound
usb: gadget: mass_storage: set msg_registered after msg registered
USB: devio: Don't corrupt user memory
USB: dummy-hcd: Fix erroneous synchronization change
USB: dummy-hcd: fix infinite-loop resubmission bug
USB: dummy-hcd: fix connection failures (wrong speed)
usb: pci-quirks.c: Corrected timeout values used in handshake
ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor
usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction
usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
usb: gadget: udc: atmel: set vbus irqflags explicitly
USB: gadgetfs: fix copy_to_user while holding spinlock
USB: gadgetfs: Fix crash caused by inadequate synchronization
usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write
ANDROID: binder: init desired_prio.sched_policy before use it
BACKPORT: net: xfrm: support setting an output mark.
UPSTREAM: xfrm: Only add l3mdev oif to dst lookups
UPSTREAM: net: l3mdev: Add master device lookup by index
Linux 4.4.91
ttpci: address stringop overflow warning
ALSA: au88x0: avoid theoretical uninitialized access
ARM: remove duplicate 'const' annotations'
IB/qib: fix false-postive maybe-uninitialized warning
drivers: firmware: psci: drop duplicate const from psci_of_match
libata: transport: Remove circular dependency at free time
xfs: remove kmem_zalloc_greedy
i2c: meson: fix wrong variable usage in meson_i2c_put_data
md/raid10: submit bio directly to replacement disk
rds: ib: add error handle
iommu/io-pgtable-arm: Check for leaf entry before dereferencing it
parisc: perf: Fix potential NULL pointer dereference
netfilter: nfnl_cthelper: fix incorrect helper->expect_class_max
exynos-gsc: Do not swap cb/cr for semi planar formats
MIPS: IRQ Stack: Unwind IRQ stack onto task stack
netfilter: invoke synchronize_rcu after set the _hook_ to NULL
bridge: netlink: register netdevice before executing changelink
mmc: sdio: fix alignment issue in struct sdio_func
usb: plusb: Add support for PL-27A1
team: fix memory leaks
net/packet: check length in getsockopt() called with PACKET_HDRLEN
net: core: Prevent from dereferencing null pointer when releasing SKB
MIPS: Lantiq: Fix another request_mem_region() return code check
ASoC: dapm: fix some pointer error handling
usb: chipidea: vbus event may exist before starting gadget
audit: log 32-bit socketcalls
ASoC: dapm: handle probe deferrals
partitions/efi: Fix integer overflow in GPT size calculation
USB: serial: mos7840: fix control-message error handling
USB: serial: mos7720: fix control-message error handling
drm/amdkfd: fix improper return value on error
IB/ipoib: Replace list_del of the neigh->list with list_del_init
IB/ipoib: rtnl_unlock can not come after free_netdev
IB/ipoib: Fix deadlock over vlan_mutex
tty: goldfish: Fix a parameter of a call to free_irq
ARM: 8635/1: nommu: allow enabling REMAP_VECTORS_TO_RAM
iio: adc: hx711: Add DT binding for avia,hx711
iio: adc: axp288: Drop bogus AXP288_ADC_TS_PIN_CTRL register modifications
hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes
sh_eth: use correct name for ECMR_MPDE bit
extcon: axp288: Use vbus-valid instead of -present to determine cable presence
igb: re-assign hw address pointer on reset after PCI error
MIPS: ralink: Fix incorrect assignment on ralink_soc
MIPS: Ensure bss section ends on a long-aligned address
ARM: dts: r8a7790: Use R-Car Gen 2 fallback binding for msiof nodes
RDS: RDMA: Fix the composite message user notification
GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
drm: bridge: add DT bindings for TI ths8135
drm_fourcc: Fix DRM_FORMAT_MOD_LINEAR #define
FROMLIST: tracing: Add support for preempt and irq enable/disable events
FROMLIST: tracing: Prepare to add preempt and irq trace events
ANDROID: binder: fix transaction leak.
ANDROID: binder: Add tracing for binder priority inheritance.
Linux 4.4.90
fix xen_swiotlb_dma_mmap prototype
swiotlb-xen: implement xen_swiotlb_dma_mmap callback
video: fbdev: aty: do not leak uninitialized padding in clk to userspace
KVM: VMX: use cmpxchg64
ARM: pxa: fix the number of DMA requestor lines
ARM: pxa: add the number of DMA requestor lines
dmaengine: mmp-pdma: add number of requestors
cxl: Fix driver use count
KVM: VMX: remove WARN_ON_ONCE in kvm_vcpu_trigger_posted_interrupt
KVM: VMX: do not change SN bit in vmx_update_pi_irte()
timer/sysclt: Restrict timer migration sysctl values to 0 and 1
gfs2: Fix debugfs glocks dump
x86/fpu: Don't let userspace set bogus xcomp_bv
btrfs: prevent to set invalid default subvolid
btrfs: propagate error to btrfs_cmp_data_prepare caller
btrfs: fix NULL pointer dereference from free_reloc_roots()
PCI: Fix race condition with driver_override
kvm: nVMX: Don't allow L2 to access the hardware CR8
KVM: VMX: Do not BUG() on out-of-bounds guest IRQ
arm64: fault: Route pte translation faults via do_translation_fault
arm64: Make sure SPsel is always set
seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()
bsg-lib: don't free job in bsg_prepare_job
nl80211: check for the required netlink attributes presence
vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets
SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
SMB: Validate negotiate (to protect against downgrade) even if signing off
Fix SMB3.1.1 guest authentication to Samba
powerpc/pseries: Fix parent_dn reference leak in add_dt_node()
KEYS: prevent KEYCTL_READ on negative key
KEYS: prevent creating a different user's keyrings
KEYS: fix writing past end of user-supplied buffer in keyring_read()
crypto: talitos - fix sha224
crypto: talitos - Don't provide setkey for non hmac hashing algs.
scsi: scsi_transport_iscsi: fix the issue that iscsi_if_rx doesn't parse nlmsg properly
md/raid5: preserve STRIPE_ON_UNPLUG_LIST in break_stripe_batch_list
md/raid5: fix a race condition in stripe batch
tracing: Erase irqsoff trace with empty write
tracing: Fix trace_pipe behavior for instance traces
KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce()
mac80211: flush hw_roc_start work before cancelling the ROC
cifs: release auth_key.response for reconnect.
f2fs: catch up to v4.14-rc1
UPSTREAM: cpufreq: schedutil: use now as reference when aggregating shared policy requests
ANDROID: add script to fetch android kernel config fragments
f2fs: reorganize stat information
f2fs: clean up flush/discard command namings
f2fs: check in-memory sit version bitmap
f2fs: check in-memory nat version bitmap
f2fs: check in-memory block bitmap
f2fs: introduce FI_ATOMIC_COMMIT
f2fs: clean up with list_{first, last}_entry
f2fs: return fs_trim if there is no candidate
f2fs: avoid needless checkpoint in f2fs_trim_fs
f2fs: relax async discard commands more
f2fs: drop exist_data for inline_data when truncated to 0
f2fs: don't allow encrypted operations without keys
f2fs: show the max number of atomic operations
f2fs: get io size bit from mount option
f2fs: support IO alignment for DATA and NODE writes
f2fs: add submit_bio tracepoint
f2fs: reassign new segment for mode=lfs
f2fs: fix a missing discard prefree segments
f2fs: use rb_entry_safe
f2fs: add a case of no need to read a page in write begin
f2fs: fix a problem of using memory after free
f2fs: remove unneeded condition
f2fs: don't cache nat entry if out of memory
f2fs: remove unused values in recover_fsync_data
f2fs: support async discard based on v4.9
f2fs: resolve op and op_flags confilcts
f2fs: remove wrong backported codes
FROMLIST: binder: fix use-after-free in binder_transaction()
UPSTREAM: ipv6: fib: Unlink replaced routes from their nodes
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
Conflicts:
fs/f2fs/crypto_key.c
fs/f2fs/f2fs_crypto.h
net/wireless/nl80211.c
sound/usb/card.c
Change-Id: I742aeaec84c7892165976b7bea3e07bdd6881d93
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.92
usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write
USB: gadgetfs: Fix crash caused by inadequate synchronization
USB: gadgetfs: fix copy_to_user while holding spinlock
usb: gadget: udc: atmel: set vbus irqflags explicitly
usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction
ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor
usb: pci-quirks.c: Corrected timeout values used in handshake
USB: dummy-hcd: fix connection failures (wrong speed)
USB: dummy-hcd: fix infinite-loop resubmission bug
USB: dummy-hcd: Fix erroneous synchronization change
USB: devio: Don't corrupt user memory
usb: gadget: mass_storage: set msg_registered after msg registered
USB: g_mass_storage: Fix deadlock when driver is unbound
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
ALSA: compress: Remove unused variable
ALSA: usx2y: Suppress kernel warning at page allocation failures
driver core: platform: Don't read past the end of "driver_override" buffer
Drivers: hv: fcopy: restore correct transfer length
stm class: Fix a use-after-free
ftrace: Fix kmemleak in unregister_ftrace_graph
HID: i2c-hid: allocate hid buffers for real worst case
iwlwifi: add workaround to disable wide channels in 5GHz
scsi: sd: Do not override max_sectors_kb sysfs setting
USB: uas: fix bug in handling of alternate settings
USB: core: harden cdc_parse_cdc_header
usb: Increase quirk delay for USB devices
USB: fix out-of-bounds in usb_set_configuration
xhci: fix finding correct bus_state structure for USB 3.1 hosts
iio: adc: twl4030: Fix an error handling path in 'twl4030_madc_probe()'
iio: adc: twl4030: Disable the vusb3v1 rugulator in the error handling path of 'twl4030_madc_probe()'
iio: ad_sigma_delta: Implement a dedicated reset function
staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.
iio: core: Return error for failed read_reg
iio: ad7793: Fix the serial interface reset
iio: adc: mcp320x: Fix readout of negative voltages
iio: adc: mcp320x: Fix oops on module unload
uwb: properly check kthread_run return value
uwb: ensure that endpoint is interrupt
brcmfmac: setup passive scan if requested by user-space
drm/i915/bios: ignore HDMI on port A
nvme: protect against simultaneous shutdown invocations
sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs
ext4: fix data corruption for mmap writes
ext4: Don't clear SGID when inheriting ACLs
ext4: don't allow encrypted operations without keys
Linux 4.4.92
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 5a838a13c9b4e5dd188b7a6eaeb894e9358ead0c upstream.
xhci driver keeps a bus_state structure for each hcd (usb2 and usb3)
The structure is picked based on hcd speed, but driver only compared
for HCD_USB3 speed, returning the wrong bus_state for HCD_USB31 hosts.
This caused null pointer dereference errors in bus_resume function.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bd7a3fe770ebd8391d1c7d072ff88e9e76d063eb upstream.
Andrey Konovalov reported a possible out-of-bounds problem for a USB interface
association descriptor. He writes:
It seems there's no proper size check of a USB_DT_INTERFACE_ASSOCIATION
descriptor. It's only checked that the size is >= 2 in
usb_parse_configuration(), so find_iad() might do out-of-bounds access
to intf_assoc->bInterfaceCount.
And he's right, we don't check for crazy descriptors of this type very well, so
resolve this problem. Yet another issue found by syzkaller...
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b2a542bbb3081dbd64acc8929c140d196664c406 upstream.
Commit e0429362ab15
("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e")
introduced quirk to workaround an issue with some Logitech webcams.
The workaround is introducing delay for some USB operations.
According to our testing, delay introduced by original commit
is not long enough and in rare cases we still see issues described
by the aforementioned commit.
This patch increases delays introduced by original commit.
Having this patch applied we do not see those problems anymore.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 786de92b3cb26012d3d0f00ee37adf14527f35c4 upstream.
The uas driver has a subtle bug in the way it handles alternate
settings. The uas_find_uas_alt_setting() routine returns an
altsetting value (the bAlternateSetting number in the descriptor), but
uas_use_uas_driver() then treats that value as an index to the
intf->altsetting array, which it isn't.
Normally this doesn't cause any problems because the various
alternate settings have bAlternateSetting values 0, 1, 2, ..., so the
value is equal to the index in the array. But this is not guaranteed,
and Andrey Konovalov used the syzkaller fuzzer with KASAN to get a
slab-out-of-bounds error by violating this assumption.
This patch fixes the bug by making uas_find_uas_alt_setting() return a
pointer to the altsetting entry rather than either the value or the
index. Pointers are less subject to misinterpretation.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
CC: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1fbbb78f25d1291274f320462bf6908906f538db upstream.
As a holdover from the old g_file_storage gadget, the g_mass_storage
legacy gadget driver attempts to unregister itself when its main
operating thread terminates (if it hasn't been unregistered already).
This is not strictly necessary; it was never more than an attempt to
have the gadget fail cleanly if something went wrong and the main
thread was killed.
However, now that the UDC core manages gadget drivers independently of
UDC drivers, this scheme doesn't work any more. A simple test:
modprobe dummy-hcd
modprobe g-mass-storage file=...
rmmod dummy-hcd
ends up in a deadlock with the following backtrace:
sysrq: SysRq : Show Blocked State
task PC stack pid father
file-storage D 0 1130 2 0x00000000
Call Trace:
__schedule+0x53e/0x58c
schedule+0x6e/0x77
schedule_preempt_disabled+0xd/0xf
__mutex_lock.isra.1+0x129/0x224
? _raw_spin_unlock_irqrestore+0x12/0x14
__mutex_lock_slowpath+0x12/0x14
mutex_lock+0x28/0x2b
usb_gadget_unregister_driver+0x29/0x9b [udc_core]
usb_composite_unregister+0x10/0x12 [libcomposite]
msg_cleanup+0x1d/0x20 [g_mass_storage]
msg_thread_exits+0xd/0xdd7 [g_mass_storage]
fsg_main_thread+0x1395/0x13d6 [usb_f_mass_storage]
? __schedule+0x573/0x58c
kthread+0xd9/0xdb
? do_set_interface+0x25c/0x25c [usb_f_mass_storage]
? init_completion+0x1e/0x1e
ret_from_fork+0x19/0x24
rmmod D 0 1155 683 0x00000000
Call Trace:
__schedule+0x53e/0x58c
schedule+0x6e/0x77
schedule_timeout+0x26/0xbc
? __schedule+0x573/0x58c
do_wait_for_common+0xb3/0x128
? usleep_range+0x81/0x81
? wake_up_q+0x3f/0x3f
wait_for_common+0x2e/0x45
wait_for_completion+0x17/0x19
fsg_common_put+0x34/0x81 [usb_f_mass_storage]
fsg_free_inst+0x13/0x1e [usb_f_mass_storage]
usb_put_function_instance+0x1a/0x25 [libcomposite]
msg_unbind+0x2a/0x42 [g_mass_storage]
__composite_unbind+0x4a/0x6f [libcomposite]
composite_unbind+0x12/0x14 [libcomposite]
usb_gadget_remove_driver+0x4f/0x77 [udc_core]
usb_del_gadget_udc+0x52/0xcc [udc_core]
dummy_udc_remove+0x27/0x2c [dummy_hcd]
platform_drv_remove+0x1d/0x31
device_release_driver_internal+0xe9/0x16d
device_release_driver+0x11/0x13
bus_remove_device+0xd2/0xe2
device_del+0x19f/0x221
? selinux_capable+0x22/0x27
platform_device_del+0x21/0x63
platform_device_unregister+0x10/0x1a
cleanup+0x20/0x817 [dummy_hcd]
SyS_delete_module+0x10c/0x197
? ____fput+0xd/0xf
? task_work_run+0x55/0x62
? prepare_exit_to_usermode+0x65/0x75
do_fast_syscall_32+0x86/0xc3
entry_SYSENTER_32+0x4e/0x7c
What happens is that removing the dummy-hcd driver causes the UDC core
to unbind the gadget driver, which it does while holding the udc_lock
mutex. The unbind routine in g_mass_storage tells the main thread to
exit and waits for it to terminate.
But as mentioned above, when the main thread exits it tries to
unregister the mass-storage function driver. Via the composite
framework this ends up calling usb_gadget_unregister_driver(), which
tries to acquire the udc_lock mutex. The result is deadlock.
The simplest way to fix the problem is not to be so clever: The main
thread doesn't have to unregister the function driver. The side
effects won't be so terrible; if the gadget is still attached to a USB
host when the main thread is killed, it will appear to the host as
though the gadget's firmware has crashed -- a reasonably accurate
interpretation, and an all-too-common occurrence for USB mass-storage
devices.
In fact, the code to unregister the driver when the main thread exits
is specific to g-mass-storage; it is not used when f-mass-storage is
included as a function in a larger composite device. Therefore the
entire mechanism responsible for this (the fsg_operations structure
with its ->thread_exits method, the fsg_common_set_ops() routine, and
the msg_thread_exits() callback routine) can all be eliminated. Even
the msg_registered bitflag can be removed, because now the driver is
unregistered in only one place rather than in two places.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8e55d30322c6a0ef746c256a1beda9c73ecb27a6 upstream.
If there is no UDC available, the msg register will fail and this
flag will not be set, but the driver is already added into pending
driver list, then the module removal modprobe -r can not remove
the driver from the pending list.
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fa1ed74eb1c233be6131ec92df21ab46499a15b6 upstream.
The user buffer has "uurb->buffer_length" bytes. If the kernel has more
information than that, we should truncate it instead of writing past
the end of the user's buffer. I added a WARN_ONCE() to help the user
debug the issue.
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 upstream.
A recent change to the synchronization in dummy-hcd was incorrect.
The issue was that dummy_udc_stop() contained no locking and therefore
could race with various gadget driver callbacks, and the fix was to
add locking and issue the callbacks with the private spinlock held.
UDC drivers aren't supposed to do this. Gadget driver callback
routines are allowed to invoke functions in the UDC driver, and these
functions will generally try to acquire the private spinlock. This
would deadlock the driver.
The correct solution is to drop the spinlock before issuing callbacks,
and avoid races by emulating the synchronize_irq() call that all real
UDC drivers must perform in their ->udc_stop() routines after
disabling interrupts. This involves adding a flag to dummy-hcd's
private structure to keep track of whether interrupts are supposed to
be enabled, and adding a counter to keep track of ongoing callbacks so
that dummy_udc_stop() can wait for them all to finish.
A real UDC driver won't receive disconnect, reset, suspend, resume, or
setup events once it has disabled interrupts. dummy-hcd will receive
them but won't try to issue any gadget driver callbacks, which should
be just as good.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: f16443a034c7 ("USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks")
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0173a68bfb0ad1c72a6ee39cc485aa2c97540b98 upstream.
The dummy-hcd HCD/UDC emulator tries not to do too much work during
each timer interrupt. But it doesn't try very hard; currently all
it does is limit the total amount of bulk data transferred. Other
transfer types aren't limited, and URBs that transfer no data (because
of an error, perhaps) don't count toward the limit, even though on a
real USB bus they would consume at least a minimum overhead.
This means it's possible to get the driver stuck in an infinite loop,
for example, if the host class driver resubmits an URB every time it
completes (which is common for interrupt URBs). Each time the URB is
resubmitted it gets added to the end of the pending-URBs list, and
dummy-hcd doesn't stop until that list is empty. Andrey Konovalov was
able to trigger this failure mode using the syzkaller fuzzer.
This patch fixes the infinite-loop problem by restricting the URBs
handled during each timer interrupt to those that were already on the
pending list when the interrupt routine started. Newly added URBs
won't be processed until the next timer interrupt. The problem of
properly accounting for non-bulk bandwidth (as well as packet and
transaction overhead) is not addressed here.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fe659bcc9b173bcfdd958ce2aec75e47651e74e1 upstream.
The dummy-hcd UDC driver is not careful about the way it handles
connection speeds. It ignores the module parameter that is supposed
to govern the maximum connection speed and it doesn't set the HCD
flags properly for the case where it ends up running at full speed.
The result is that in many cases, gadget enumeration over dummy-hcd
fails because the bMaxPacketSize byte in the device descriptor is set
incorrectly. For example, the default settings call for a high-speed
connection, but the maxpacket value for ep0 ends up being set for a
Super-Speed connection.
This patch fixes the problem by initializing the gadget's max_speed
and the HCD flags correctly.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 114ec3a6f9096d211a4aff4277793ba969a62c73 upstream.
Servers were emitting failed handoff messages but were not
waiting the full 1 second as designated in section 4.22.1 of
the eXtensible Host Controller Interface specifications. The
handshake was using wrong units so calls were made with milliseconds
not microseconds. Comments referenced 5 seconds not 1 second as
in specs.
The wrong units were also corrected in a second handshake call.
Signed-off-by: Jim Dickerson <jim.dickerson@hpe.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0a2ce62b61f2c76d0213edf4e37aaf54a8ddf295 upstream.
This patch fixes an issue that the usbhsf_fifo_clear() is possible
to cause 10 msec delay if the pipe is RX direction and empty because
the FRDY bit will never be set to 1 in such case.
Fixes: e8d548d54968 ("usb: renesas_usbhs: fifo became independent from pipe.")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6124607acc88fffeaadf3aacfeb3cc1304c87387 upstream.
This patch fixes an issue that the driver sets the BCLR bit of
{C,Dn}FIFOCTR register to 1 even when it's non-DCP pipe and
the FRDY bit of {C,Dn}FIFOCTR register is set to 1.
Fixes: e8d548d54968 ("usb: renesas_usbhs: fifo became independent from pipe.")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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external drives
commit 113f6eb6d50cfa5e2a1cdcf1678b12661fa272ab upstream.
Kris Lindgren reports that without the NO_WP_DETECT flag, his Seagate
external disk drive fails all write accesses. This regresssion dates
back approximately to the start of the 4.x kernel releases.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Kris Lindgren <kris.lindgren@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6baeda120d90aa637b08f7604de104ab00ce9126 upstream.
The driver triggers actions on both edges of the vbus signal.
The former PIO controller was triggering IRQs on both falling and rising edges
by default. Newer PIO controller don't, so it's better to set it explicitly to
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING.
Without this patch we may trigger the connection with host but only on some
bouncing signal conditions and thus lose connecting events.
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6e76c01e71551cb221c1f3deacb9dcd9a7346784 upstream.
The gadgetfs driver as a long-outstanding FIXME, regarding a call of
copy_to_user() made while holding a spinlock. This patch fixes the
issue by dropping the spinlock and using the dev->udc_usage mechanism
introduced by another recent patch to guard against status changes
while the lock isn't held.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 520b72fc64debf8a86c3853b8e486aa5982188f0 upstream.
The gadgetfs driver (drivers/usb/gadget/legacy/inode.c) was written
before the UDC and composite frameworks were adopted; it is a legacy
driver. As such, it expects that once bound to a UDC controller, it
will not be unbound until it unregisters itself.
However, the UDC framework does unbind function drivers while they are
still registered. When this happens, it can cause the gadgetfs driver
to misbehave or crash. For example, userspace can cause a crash by
opening the device file and doing an ioctl call before setting up a
configuration (found by Andrey Konovalov using the syzkaller fuzzer).
This patch adds checks and synchronization to prevent these bad
behaviors. It adds a udc_usage counter that the driver increments at
times when it is using a gadget interface without holding the private
spinlock. The unbind routine waits for this counter to go to 0 before
returning, thereby ensuring that the UDC is no longer in use.
The patch also adds a check in the dev_ioctl() routine to make sure
the driver is bound to a UDC before dereferencing the gadget pointer,
and it makes destroy_ep_files() synchronize with the endpoint I/O
routines, to prevent the user from accessing an endpoint data
structure after it has been removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b7bd98b7db9fc8fe19da1a5ff0215311c6b95e46 upstream.
Fix bad unlock balance: ep0_write enter with the locks locked from
inode.c:1769, hence it must exit with spinlock held to avoid double
unlock in dev_config.
Signed-off-by: David Eccher <d.eccher@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.91
drm_fourcc: Fix DRM_FORMAT_MOD_LINEAR #define
drm: bridge: add DT bindings for TI ths8135
GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
RDS: RDMA: Fix the composite message user notification
ARM: dts: r8a7790: Use R-Car Gen 2 fallback binding for msiof nodes
MIPS: Ensure bss section ends on a long-aligned address
MIPS: ralink: Fix incorrect assignment on ralink_soc
igb: re-assign hw address pointer on reset after PCI error
extcon: axp288: Use vbus-valid instead of -present to determine cable presence
sh_eth: use correct name for ECMR_MPDE bit
hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes
iio: adc: axp288: Drop bogus AXP288_ADC_TS_PIN_CTRL register modifications
iio: adc: hx711: Add DT binding for avia,hx711
ARM: 8635/1: nommu: allow enabling REMAP_VECTORS_TO_RAM
tty: goldfish: Fix a parameter of a call to free_irq
IB/ipoib: Fix deadlock over vlan_mutex
IB/ipoib: rtnl_unlock can not come after free_netdev
IB/ipoib: Replace list_del of the neigh->list with list_del_init
drm/amdkfd: fix improper return value on error
USB: serial: mos7720: fix control-message error handling
USB: serial: mos7840: fix control-message error handling
partitions/efi: Fix integer overflow in GPT size calculation
ASoC: dapm: handle probe deferrals
audit: log 32-bit socketcalls
usb: chipidea: vbus event may exist before starting gadget
ASoC: dapm: fix some pointer error handling
MIPS: Lantiq: Fix another request_mem_region() return code check
net: core: Prevent from dereferencing null pointer when releasing SKB
net/packet: check length in getsockopt() called with PACKET_HDRLEN
team: fix memory leaks
usb: plusb: Add support for PL-27A1
mmc: sdio: fix alignment issue in struct sdio_func
bridge: netlink: register netdevice before executing changelink
netfilter: invoke synchronize_rcu after set the _hook_ to NULL
MIPS: IRQ Stack: Unwind IRQ stack onto task stack
exynos-gsc: Do not swap cb/cr for semi planar formats
netfilter: nfnl_cthelper: fix incorrect helper->expect_class_max
parisc: perf: Fix potential NULL pointer dereference
iommu/io-pgtable-arm: Check for leaf entry before dereferencing it
rds: ib: add error handle
md/raid10: submit bio directly to replacement disk
i2c: meson: fix wrong variable usage in meson_i2c_put_data
xfs: remove kmem_zalloc_greedy
libata: transport: Remove circular dependency at free time
drivers: firmware: psci: drop duplicate const from psci_of_match
IB/qib: fix false-postive maybe-uninitialized warning
ARM: remove duplicate 'const' annotations'
ALSA: au88x0: avoid theoretical uninitialized access
ttpci: address stringop overflow warning
Linux 4.4.91
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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[ Upstream commit c3b674a04b8ab62a1d35e86714d466af0a0ecc18 ]
At some situations, the vbus may already be there before starting
gadget. So we need to check vbus event after switching to gadget in
order to handle missing vbus event. The typical use cases are plugging
vbus cable before driver load or the vbus has already been there
after stopping host but before starting gadget.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Tested-by: Stephen Boyd <stephen.boyd@linaro.org>
Reported-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit cd8db057e93ddaacbec025b567490555d2bca280 ]
Make sure to detect short transfers when reading a device register.
The modem-status handling had sufficient error checks in place, but move
handling of short transfers into the register accessor function itself
for consistency.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0d130367abf582e7cbf60075c2a7ab53817b1d14 ]
Make sure to log an error on short transfers when reading a device
register.
Also clear the provided buffer (which if often an uninitialised
automatic variable) on errors as the driver currently does not bother to
check for errors.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* refs/heads/tmp-29d0b65
Linux 4.4.88
xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
NFS: Fix 2 use after free issues in the I/O code
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
Bluetooth: Properly check L2CAP config option output buffer length
ALSA: msnd: Optimize / harden DSP and MIDI loops
locktorture: Fix potential memory leak with rw lock test
btrfs: resume qgroup rescan on rw remount
drm/bridge: adv7511: Re-write the i2c address before EDID probing
drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
drm: adv7511: really enable interrupts for EDID detection
scsi: sg: recheck MMAP_IO request length with lock held
scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
cs5536: add support for IDE controller variant
workqueue: Fix flag collision
drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
mwifiex: correct channel stat buffer overflows
dlm: avoid double-free on error path in dlm_device_{register,unregister}
Bluetooth: Add support of 13d3:3494 RTL8723BE device
rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter
Input: trackpoint - assume 3 buttons when buttons detection fails
ath10k: fix memory leak in rx ring buffer allocation
intel_th: pci: Add Cannon Lake PCH-LP support
intel_th: pci: Add Cannon Lake PCH-H support
driver core: bus: Fix a potential double free
staging/rts5208: fix incorrect shift to extract upper nybble
USB: core: Avoid race of async_completed() w/ usbdev_release()
usb:xhci:Fix regression when ATI chipsets detected
usb: Add device quirk for Logitech HD Pro Webcam C920-C
USB: serial: option: add support for D-Link DWM-157 C1
usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
ANDROID: sdcardfs: Add missing break
ANDROID: Sdcardfs: Move gid derivation under flag
ANDROID: mnt: Fix freeing of mount data
drivers: cpufreq: checks to avoid kernel crash in cpufreq_interactive
ANDROID: Use sk_uid to replace uid get from socket file
ANDROID: nf: xt_qtaguid: fix handling for cases where tunnels are used.
Revert "ANDROID: Use sk_uid to replace uid get from socket file"
ANDROID: fiq_debugger: Fix minor bug in code
Conflicts:
drivers/cpufreq/cpufreq_interactive.c
drivers/net/wireless/ath/ath10k/core.c
drivers/staging/android/fiq_debugger/fiq_debugger.c
net/netfilter/xt_qtaguid.c
Change-Id: I49c67ff84d4bee0799691cc1ee0a023e2dd13e66
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.88
usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
USB: serial: option: add support for D-Link DWM-157 C1
usb: Add device quirk for Logitech HD Pro Webcam C920-C
usb:xhci:Fix regression when ATI chipsets detected
USB: core: Avoid race of async_completed() w/ usbdev_release()
staging/rts5208: fix incorrect shift to extract upper nybble
driver core: bus: Fix a potential double free
intel_th: pci: Add Cannon Lake PCH-H support
intel_th: pci: Add Cannon Lake PCH-LP support
ath10k: fix memory leak in rx ring buffer allocation
Input: trackpoint - assume 3 buttons when buttons detection fails
rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter
Bluetooth: Add support of 13d3:3494 RTL8723BE device
dlm: avoid double-free on error path in dlm_device_{register,unregister}
mwifiex: correct channel stat buffer overflows
drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
workqueue: Fix flag collision
cs5536: add support for IDE controller variant
scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
scsi: sg: recheck MMAP_IO request length with lock held
drm: adv7511: really enable interrupts for EDID detection
drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
drm/bridge: adv7511: Re-write the i2c address before EDID probing
btrfs: resume qgroup rescan on rw remount
locktorture: Fix potential memory leak with rw lock test
ALSA: msnd: Optimize / harden DSP and MIDI loops
Bluetooth: Properly check L2CAP config option output buffer length
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
NFS: Fix 2 use after free issues in the I/O code
xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
Linux 4.4.88
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit ed62ca2f4f51c17841ea39d98c0c409cb53a3e10 upstream.
While running reboot tests w/ a specific set of USB devices (and
slub_debug enabled), I found that once every few hours my device would
be crashed with a stack that looked like this:
[ 14.012445] BUG: spinlock bad magic on CPU#0, modprobe/2091
[ 14.012460] lock: 0xffffffc0cb055978, .magic: ffffffc0, .owner: cryption contexts: %lu/%lu
[ 14.012460] /1025536097, .owner_cpu: 0
[ 14.012466] CPU: 0 PID: 2091 Comm: modprobe Not tainted 4.4.79 #352
[ 14.012468] Hardware name: Google Kevin (DT)
[ 14.012471] Call trace:
[ 14.012483] [<....>] dump_backtrace+0x0/0x160
[ 14.012487] [<....>] show_stack+0x20/0x28
[ 14.012494] [<....>] dump_stack+0xb4/0xf0
[ 14.012500] [<....>] spin_dump+0x8c/0x98
[ 14.012504] [<....>] spin_bug+0x30/0x3c
[ 14.012508] [<....>] do_raw_spin_lock+0x40/0x164
[ 14.012515] [<....>] _raw_spin_lock_irqsave+0x64/0x74
[ 14.012521] [<....>] __wake_up+0x2c/0x60
[ 14.012528] [<....>] async_completed+0x2d0/0x300
[ 14.012534] [<....>] __usb_hcd_giveback_urb+0xc4/0x138
[ 14.012538] [<....>] usb_hcd_giveback_urb+0x54/0xf0
[ 14.012544] [<....>] xhci_irq+0x1314/0x1348
[ 14.012548] [<....>] usb_hcd_irq+0x40/0x50
[ 14.012553] [<....>] handle_irq_event_percpu+0x1b4/0x3f0
[ 14.012556] [<....>] handle_irq_event+0x4c/0x7c
[ 14.012561] [<....>] handle_fasteoi_irq+0x158/0x1c8
[ 14.012564] [<....>] generic_handle_irq+0x30/0x44
[ 14.012568] [<....>] __handle_domain_irq+0x90/0xbc
[ 14.012572] [<....>] gic_handle_irq+0xcc/0x18c
Investigation using kgdb() found that the wait queue that was passed
into wake_up() had been freed (it was filled with slub_debug poison).
I analyzed and instrumented the code and reproduced. My current
belief is that this is happening:
1. async_completed() is called (from IRQ). Moves "as" onto the
completed list.
2. On another CPU, proc_reapurbnonblock_compat() calls
async_getcompleted(). Blocks on spinlock.
3. async_completed() releases the lock; keeps running; gets blocked
midway through wake_up().
4. proc_reapurbnonblock_compat() => async_getcompleted() gets the
lock; removes "as" from completed list and frees it.
5. usbdev_release() is called. Frees "ps".
6. async_completed() finally continues running wake_up(). ...but
wake_up() has a pointer to the freed "ps".
The instrumentation that led me to believe this was based on adding
some trace_printk() calls in a select few functions and then using
kdb's "ftdump" at crash time. The trace follows (NOTE: in the trace
below I cheated a little bit and added a udelay(1000) in
async_completed() after releasing the spinlock because I wanted it to
trigger quicker):
<...>-2104 0d.h2 13759034us!: async_completed at start: as=ffffffc0cc638200
mtpd-2055 3.... 13759356us : async_getcompleted before spin_lock_irqsave
mtpd-2055 3d..1 13759362us : async_getcompleted after list_del_init: as=ffffffc0cc638200
mtpd-2055 3.... 13759371us+: proc_reapurbnonblock_compat: free_async(ffffffc0cc638200)
mtpd-2055 3.... 13759422us+: async_getcompleted before spin_lock_irqsave
mtpd-2055 3.... 13759479us : usbdev_release at start: ps=ffffffc0cc042080
mtpd-2055 3.... 13759487us : async_getcompleted before spin_lock_irqsave
mtpd-2055 3.... 13759497us!: usbdev_release after kfree(ps): ps=ffffffc0cc042080
<...>-2104 0d.h2 13760294us : async_completed before wake_up(): as=ffffffc0cc638200
To fix this problem we can just move the wake_up() under the ps->lock.
There should be no issues there that I'm aware of.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e6b422b88b46353cf596e0db6dc0e39d50d90d6e upstream.
The following commit cause a regression on ATI chipsets.
'commit e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")'
This causes pinfo->smbus_dev to be wrongly set to NULL on
systems with the ATI chipset that this function checks for first.
Added conditional check for AMD chipsets to avoid the overwriting
pinfo->smbus_dev.
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")
cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Sandeep Singh <Sandeep.Singh@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a1279ef74eeeb5f627f091c71d80dd7ac766c99d upstream.
Commit e0429362ab15
("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e")
introduced quirk to workaround an issue with some Logitech webcams.
Apparently model C920-C has the same issue so applying
the same quirk as well.
See aforementioned commit message for detailed explanation of the problem.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 169e86546f5712179709de23cd64bbb15f199fab upstream.
This commit adds support (an ID, really) for D-Link DWM-157 hardware
version C1 USB modem to option driver.
According to manufacturer-provided Windows INF file the device has four
serial ports:
"D-Link HSPA+DataCard Diagnostics Interface" (interface 2; modem port),
"D-Link HSPA+DataCard NMEA Device" (interface 3),
"D-Link HSPA+DataCard Speech Port" (interface 4),
"D-Link HSPA+DataCard Debug Port" (interface 5).
usb-devices output:
T: Bus=05 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2001 ProdID=7d0e Rev=03.00
S: Manufacturer=D-Link,Inc
S: Product=D-Link DWM-157
C: #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=option
I: If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit de3af5bf259d7a0bfaac70441c8568ab5998d80c upstream.
Corsair Strafe RGB keyboard has trouble to initialize:
[ 1.679455] usb 3-6: new full-speed USB device number 4 using xhci_hcd
[ 6.871136] usb 3-6: unable to read config index 0 descriptor/all
[ 6.871138] usb 3-6: can't read configurations, error -110
[ 6.991019] usb 3-6: new full-speed USB device number 5 using xhci_hcd
[ 12.246642] usb 3-6: unable to read config index 0 descriptor/all
[ 12.246644] usb 3-6: can't read configurations, error -110
[ 12.366555] usb 3-6: new full-speed USB device number 6 using xhci_hcd
[ 17.622145] usb 3-6: unable to read config index 0 descriptor/all
[ 17.622147] usb 3-6: can't read configurations, error -110
[ 17.742093] usb 3-6: new full-speed USB device number 7 using xhci_hcd
[ 22.997715] usb 3-6: unable to read config index 0 descriptor/all
[ 22.997716] usb 3-6: can't read configurations, error -110
Although it may work after several times unpluging/pluging:
[ 68.195240] usb 3-6: new full-speed USB device number 11 using xhci_hcd
[ 68.337459] usb 3-6: New USB device found, idVendor=1b1c, idProduct=1b20
[ 68.337463] usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 68.337466] usb 3-6: Product: Corsair STRAFE RGB Gaming Keyboard
[ 68.337468] usb 3-6: Manufacturer: Corsair
[ 68.337470] usb 3-6: SerialNumber: 0F013021AEB8046755A93ED3F5001941
Tried three quirks: USB_QUIRK_DELAY_INIT, USB_QUIRK_NO_LPM and
USB_QUIRK_DEVICE_QUALIFIER, user confirmed that USB_QUIRK_DELAY_INIT alone
can workaround this issue. Hence add the quirk for Corsair Strafe RGB.
BugLink: https://bugs.launchpad.net/bugs/1678477
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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QDSS Data and QDSS Ctrl related string descriptors are defined but those
are not being advertised to Host. Hence update USB QDSS interface
descriptor with USB QDSS string descriptor. This helps some of host side
application to detect enuermated QDSS interface and allows IO with it.
Change-Id: I1ff141f1b52d867d70ecc8f23ac065639999c0f9
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
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This change starts using dl_max_packet_size value sent by host
as part of USB RNDIS init message communication. Using default
dl_max_packet_size value results into low throughput with more
data loss on host side as host side RNDIS can't support
de-aggregation (applicable for Linux Host RNDIS driver) or it
ignores received more data then host side RNDIS can handle. To
use fine tune dl_max_packet_size for better throughput, driver
selects minimum value between host supported dl_max_packet_size
and default size (i.e. 9216 bytes as RNDIS IN aggregation size).
Change-Id: I00c81bc905a032867c537536b01bf32584c37e63
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
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In the case of gsi_free_inst() called, whole f_gst structure is freed.
GSI control related API like gsi_ctrl_dev_poll do not check if f_gsi
is freed or not, only check gsi_ctrl_port is NULL or not.
If GSI driver is opened by userspace, gsi_free_inst() is executed,
mark inst_exist to false but do not free instance structures and
deregister misc device until misc device is closed.
Besides, in the GSI control related API read/write/ioctl/poll,
check if GSI instance is freed or not.
Change-Id: I4245964989a1284f5180efb69b64bd63e9104059
Signed-off-by: Liangliang Lu <luliang@codeaurora.org>
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Currently CCID function supports only upto HighSpeed
enumeration. Add descriptors for SuperSpeed mode
and bind them to enable SuperSpeed enumeration of
USB CCID function.
Change-Id: I1908a9aa2daec7d1d361cb996e82cd1a0700f7cc
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
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Charger driver expects USB driver notify -ETIMEDOUT always on
POWER_SUPPLY_PROP_CURRENT_MAXCURRENT on enumeration failure in case
of floating charger. This is to set ICL to value based on Rp in case of
floating charger. But currently driver is not notifying this, when floating
charger is disconnected and connected back. Due to this, device is charging
only with 100mA instead of current based on Rp value. Fix this by having
proper check and allow to notify in case of floating charger type.
Change-Id: Iee0c4d8faa7e25c8445b83784a782751e7148421
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
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Add support for sending extended messages. Since the underlying
PD PHY only supports a fixed 30 byte payload, longer messages up
to 260 bytes must use chunking, which requires the receiver to
request the next chunk until the entire payload is delivered.
Use a completion variable to wait for the chunk requests so that
pd_send_ext_msg() can be a blocking call. Send following two
extended messages using sysfs in SINK ready state and cache response:-
1) Get_Battery_Cap and Battery_Capabilities as response
2) Get_Battery_Status and Battery_Status as response.
These two extended messages are recommended for PD 3.0 SINK.
Change-Id: Ib2b4e658c47995de1ea139406d7d83737c6208d4
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
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