Age | Commit message (Collapse) | Author |
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Now that we query all the parameters, adding support for new hardware
is easy. This commit adds support for the touchpad found on the
HP x2 10-n000nd touchpad 2-in-1.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Note all Elan touchpads have a LED make this configurable using
a flag in hi_id.driver_data.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Query the resolution from the touchpad and report it to userspace
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Query the device's max_x and max_y value from the touchpad rather then
hardcoding it. This makes adding support for other USB ids a lot easier.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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There is no need to have these configurable.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Elan has given me a (GPL-ed) Android driver for their non HID-mt touchpads
to help improve the upstream support.
Acoording to Elan what we are currently reporting as tool-width
really is a per-touch pressure. This always has a maximum of 255, so there
is no need to make the max configurable.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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We never report MT_TOUCH_MAJOR, so lets not claim that we do.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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max_area_x and max_area_y are initialized but never used anywhere,
drop them.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- spectrev1 pattern fix in hiddev from Gustavo A. R. Silva
- bounds check fix for hid-debug from Daniel Rosenberg
- regression fix for HID autobinding from Benjamin Tissoires
- removal of excessive logging from i2c-hid driver from Jason Andryuk
- fix specific to 2nd generation of Wacom Intuos devices from Jason
Gerecke
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: hiddev: fix potential Spectre v1
HID: i2c-hid: Fix "incomplete report" noise
HID: wacom: Correct touch maximum XY of 2nd-gen Intuos
HID: debug: check length before copy_to_user()
HID: core: allow concurrent registration of drivers
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Update my TDA998x HDMI encoder MAINTAINERS entry to include the
dt-bindings header, and a keyword pattern to catch patches containing
the DT compatible. Also change the status to "maintained" rather than
"supported".
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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uref->field_index, uref->usage_index, finfo.field_index and cinfo.index can be
indirectly controlled by user-space, hence leading to a potential exploitation
of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/hid/usbhid/hiddev.c:473 hiddev_ioctl_usage() warn: potential spectre issue 'report->field' (local cap)
drivers/hid/usbhid/hiddev.c:477 hiddev_ioctl_usage() warn: potential spectre issue 'field->usage' (local cap)
drivers/hid/usbhid/hiddev.c:757 hiddev_ioctl() warn: potential spectre issue 'report->field' (local cap)
drivers/hid/usbhid/hiddev.c:801 hiddev_ioctl() warn: potential spectre issue 'hid->collection' (local cap)
Fix this by sanitizing such structure fields before using them to index
report->field, field->usage and hid->collection
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Commit ac75a041048b ("HID: i2c-hid: fix size check and type usage") started
writing messages when the ret_size is <= 2 from i2c_master_recv. However, my
device i2c-DLL07D1 returns 2 for a short period of time (~0.5s) after I stop
moving the pointing stick or touchpad. It varies, but you get ~50 messages
each time which spams the log hard.
[ 95.925055] i2c_hid i2c-DLL07D1:01: i2c_hid_get_input: incomplete report (83/2)
This has also been observed with a i2c-ALP0017.
[ 1781.266353] i2c_hid i2c-ALP0017:00: i2c_hid_get_input: incomplete report (30/2)
Only print the message when ret_size is totally invalid and less than 2 to cut
down on the log spam.
Fixes: ac75a041048b ("HID: i2c-hid: fix size check and type usage")
Reported-by: John Smith <john-s-84@gmx.net>
Cc: stable@vger.kernel.org
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A small collection of fixes, sort of the usual at this point, all for
i.MX or OMAP:
- Enable ULPI drivers on i.MX to avoid a hang
- Pinctrl fix for touchscreen on i.MX51 ZII RDU1
- Fixes for ethernet clock references on am3517
- mmc0 write protect detection fix for am335x
- kzalloc->kcalloc conversion in an OMAP driver
- USB metastability fix for USB on dra7
- Fix touchscreen wakeup on am437x"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx_v4_v5_defconfig: Select ULPI support
ARM: imx_v6_v7_defconfig: Select ULPI support
ARM: dts: omap3: Fix am3517 mdio and emac clock references
ARM: dts: am335x-bone-common: Fix mmc0 Write Protect
bus: ti-sysc: Use 2-factor allocator arguments
ARM: dts: dra7: Disable metastability workaround for USB2
ARM: dts: imx51-zii-rdu1: fix touchscreen pinctrl
ARM: dts: am437x: make edt-ft5x06 a wakeup source
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/pti updates from Thomas Gleixner:
"Two small fixes correcting the handling of SSB mitigations on AMD
processors"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
x86/bugs: Update when to check for the LS_CFG SSBD mitigation
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
- Prevent an out-of-bounds access in mtrr_write()
- Break a circular dependency in the new hyperv IPI acceleration code
- Address the build breakage related to inline functions by enforcing
gnu_inline and explicitly bringing native_save_fl() out of line,
which also adds a set of _ARM_ARG macros which provide 32/64bit
safety.
- Initialize the shadow CR4 per cpu variable before using it.
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mtrr: Don't copy out-of-bounds data in mtrr_write
x86/hyper-v: Fix the circular dependency in IPI enlightenment
x86/paravirt: Make native_save_fl() extern inline
x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h>
compiler-gcc.h: Add __attribute__((gnu_inline)) to all inline declarations
x86/mm/32: Initialize the CR4 shadow before __flush_tlb_all()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
- The hopefully final fix for the reported race problems in
kthread_parkme(). The previous attempt still left a hole and was
partially wrong.
- Plug a race in the remote tick mechanism which triggers a warning
about updates not being done correctly. That's a false positive if
the race condition is hit as the remote CPU is idle. Plug it by
checking the condition again when holding run queue lock.
- Fix a bug in the utilization estimation of a run queue which causes
the estimation to be 0 when a run queue is throttled.
- Advance the global expiration of the period timer when the timer is
restarted after a idle period. Otherwise the expiry time is stale and
the timer fires prematurely.
- Cure the drift between the bandwidth timer and the runqueue
accounting, which leads to bogus throttling of runqueues
- Place the call to cpufreq_update_util() correctly so the function
will observe the correct number of running RT tasks and not a stale
one.
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kthread, sched/core: Fix kthread_parkme() (again...)
sched/util_est: Fix util_est_dequeue() for throttled cfs_rq
sched/fair: Advance global expiration when period timer is restarted
sched/fair: Fix bandwidth timer clock drift condition
sched/rt: Fix call to cpufreq_update_util()
sched/nohz: Skip remote tick on idle task entirely
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Thomas Gleixner:
"A single fix for objtool to address a bug in handling the cold
subfunction detection for aliased functions which was added recently.
The bug causes objtool to enter an infinite loop"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Support GCC 8 '-fnoreorder-functions'
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- add missing RETs in x86 aegis/morus
- fix build error in arm speck
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: x86 - Add missing RETs
crypto: arm/speck - fix building in Thumb2 mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o:
"Bug fixes for ext4; most of which relate to vulnerabilities where a
maliciously crafted file system image can result in a kernel OOPS or
hang.
At least one fix addresses an inline data bug could be triggered by
userspace without the need of a crafted file system (although it does
require that the inline data feature be enabled)"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: check superblock mapped prior to committing
ext4: add more mount time checks of the superblock
ext4: add more inode number paranoia checks
ext4: avoid running out of journal credits when appending to an inline file
jbd2: don't mark block as modified if the handle is out of credits
ext4: never move the system.data xattr out of the inode body
ext4: clear i_data in ext4_inode_info when removing inline data
ext4: include the illegal physical block in the bad map ext4_error msg
ext4: verify the depth of extent tree in ext4_find_extent()
ext4: only look at the bg_flags field if it is valid
ext4: make sure bitmaps and the inode table don't overlap with bg descriptors
ext4: always check block group bounds in ext4_init_block_bitmap()
ext4: always verify the magic number in xattr blocks
ext4: add corruption check in ext4_xattr_set_entry()
ext4: add warn_on_error mount option
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Fix a use-after-free in the endpoint code (Dan Carpenter)
- Stop defaulting CONFIG_PCIE_DW_PLAT_HOST to yes (Geert Uytterhoeven)
- Fix an nfp regression caused by a change in how we limit the number
of VFs we can enable (Jakub Kicinski)
- Fix failure path cleanup issues in the new R-Car gen3 PHY support
(Marek Vasut)
- Fix leaks of OF nodes in faraday, xilinx-nwl, xilinx (Nicholas Mc
Guire)
* tag 'pci-v4.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
nfp: stop limiting VFs to 0
PCI/IOV: Reset total_VFs limit after detaching PF driver
PCI: faraday: Add missing of_node_put()
PCI: xilinx-nwl: Add missing of_node_put()
PCI: xilinx: Add missing of_node_put()
PCI: endpoint: Use after free in pci_epf_unregister_driver()
PCI: controller: dwc: Do not let PCIE_DW_PLAT_HOST default to yes
PCI: rcar: Clean up PHY init on failure
PCI: rcar: Shut the PHY down in failpath
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Pull cifs fixes from Steve French:
"Five smb3/cifs fixes for stable (including for some leaks and memory
overwrites) and also a few fixes for recent regressions in packet
signing.
Additional testing at the recent SMB3 test event, and some good work
by Paulo and others spotted the issues fixed here. In addition to my
xfstest runs on these, Aurelien and Stefano did additional test runs
to verify this set"
* tag '4.18-rc3-smb3fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix stack out-of-bounds in smb{2,3}_create_lease_buf()
cifs: Fix infinite loop when using hard mount option
cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting
cifs: Fix memory leak in smb2_set_ea()
cifs: fix SMB1 breakage
cifs: Fix validation of signed data in smb2
cifs: Fix validation of signed data in smb3+
cifs: Fix use after free of a mid_q_entry
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Pull dma-mapping fix from Christoph Hellwig:
"Revert an incorrect dma-mapping commit for 4.18-rc"
* tag 'dma-mapping-4.18-3' of git://git.infradead.org/users/hch/dma-mapping:
Revert "iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up intel_{alloc,free}_coherent()"
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"We have few odd driver fixes and one email update change for you this
time:
- Driver fixes for k3dma (off by one), pl330 (burst residue
granularity) and omap-dma (incorrect residue_granularity)
- Sinan's email update"
* tag 'dmaengine-fix-4.18-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
dmaengine: pl330: report BURST residue granularity
MAINTAINERS: Update email-id of Sinan Kaya
dmaengine: ti: omap-dma: Fix OMAP1510 incorrect residue_granularity
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Pull IPMI fixes from Corey Minyard:
"A couple of small fixes: one to the BMC side of things that fixes an
interrupt issue, and one oops fix if init fails in a certain way on
the client driver"
* tag 'for-linus-4.18-2' of git://github.com/cminyard/linux-ipmi:
ipmi: kcs_bmc: fix IRQ exception if the channel is not open
ipmi: Cleanup oops on initialization failure
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 LDFLAGS clean-up from Catalin Marinas:
- use aarch64elf instead of aarch64linux
- move endianness options to LDFLAGS instead from LD
- remove no-op '-p' linker flag
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: remove no-op -p linker flag
arm64: add endianness option to LDFLAGS instead of LD
arm64: Use aarch64elf and aarch64elfb emulation mode variants
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Don't access the provided buffer out of bounds - this can cause a kernel
out-of-bounds read when invoked through sys_splice() or other things that
use kernel_write()/__kernel_write().
Fixes: 7f8ec5a4f01a ("x86/mtrr: Convert to use strncpy_from_user() helper")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180706215003.156702-1-jannh@google.com
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is two minor bug fixes (aacraid, target) and a fix for a
potential exploit in the way sg handles teardown"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sg: mitigate read/write abuse
scsi: aacraid: Fix PD performance regression over incorrect qd being set
scsi: target: Fix truncated PR-in ReadKeys response
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Pull block fixes from Jens Axboe:
"Two minor fixes for this series:
- add LOOP_SET_BLOCK_SIZE as compat ioctl (Evan Green)
- drbd use-after-free fix (Lars Ellenberg)"
* tag 'for-linus-20180706' of git://git.kernel.dk/linux-block:
loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl
drbd: fix access after free
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"The usual collection of driver fixlets:
- build cleanup/fix for the sunxi makefile that tried to save size
but failed and prevented dead code elimination from working
- two Davinci clk driver fixes for a typo causing build failures in
different configurations and an error check that checks the wrong
variable.
- undo the DT ABI breaking imx6ul binding header shuffle that got
merged this cycle"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
dt-bindings: clock: imx6ul: Do not change the clock definition order
clk: davinci: fix a typo (which leads to build failures)
clk: davinci: cfgchip: testing the wrong variable
clk: sunxi-ng: replace lib-y with obj-y
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Pull VFIO fixes from Alex Williamson:
- Make vfio-pci IGD extensions optional via Kconfig (Alex Williamson)
- Remove unused and soon to be removed map_atomic callback from mbochs
sample driver, add unmap callback to avoid dmabuf leaks (Gerd
Hoffmann)
- Fix usage of get_user_pages_longterm() (Jason Gunthorpe)
- Fix sample mbochs driver vm_operations_struct.fault return type
(Souptick Joarder)
* tag 'vfio-v4.18-rc4' of git://github.com/awilliam/linux-vfio:
sample/vfio-mdev: Change return type to vm_fault_t
vfio: Use get_user_pages_longterm correctly
sample/mdev/mbochs: add mbochs_kunmap_dmabuf
sample/mdev/mbochs: remove mbochs_kmap_atomic_dmabuf
vfio/pci: Make IGD support a configurable option
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"A few more changes for v4.18:
- wire up the two new system calls io_pgetevents and rseq
- fix a register corruption in the expolines code for machines
without EXRL
- drastically reduce the memory utilization of the dasd driver
- fix reference counting for KVM page table pages"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: wire up rseq system call
s390: wire up io_pgetevents system call
s390/mm: fix refcount usage for 4K pgste
s390/dasd: reduce the default queue depth and nr of hardware queues
s390: Correct register corruption in critical section cleanup
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The IPI hypercalls depend on being able to map the Linux notion of CPU ID
to the hypervisor's notion of the CPU ID. The array hv_vp_index[] provides
this mapping. Code for populating this array depends on the IPI functionality.
Break this circular dependency.
[ tglx: Use a proper define instead of '-1' with a u32 variable as pointed
out by Vitaly ]
Fixes: 68bb7bfb7985 ("X86/Hyper-V: Enable IPI enlightenments")
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Cc: gregkh@linuxfoundation.org
Cc: devel@linuxdriverproject.org
Cc: olaf@aepfle.de
Cc: apw@canonical.com
Cc: jasowang@redhat.com
Cc: hpa@zytor.com
Cc: sthemmin@microsoft.com
Cc: Michael.H.Kelley@microsoft.com
Cc: vkuznets@redhat.com
Link: https://lkml.kernel.org/r/20180703230155.15160-1-kys@linuxonhyperv.com
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Pull drm fixes from Dave Airlie:
"This is the drm fixes for rc4.
It's a bit larger than I'd like but the exynos cleanups are pretty
mechanical, and I'd rather have them in sooner rather than later so we
can avoid too much conflicts around them. The non-mechanincal exynos
changes are mostly fixes for new feature recently introduced.
Apart from the exynos updates, we have:
i915:
- GVT and GGTT mapping fixes
amdgpu:
- fix HDMI2.0 4K@60 Hz regression
- Hotplug fixes for dual-GPU laptops to make power management better
- misc vega12 bios fixes, a race fix and some typos.
sii8620 bridge:
- small fixes around mode setting
core:
- use kvzalloc to allocate blob property memory"
* tag 'drm-fixes-2018-07-06' of git://anongit.freedesktop.org/drm/drm: (34 commits)
drm/amd/display: add a check for display depth validity
drm/amd/display: adding ycbcr420 pixel encoding for hdmi
drm/udl: fix display corruption of the last line
drm/bridge/sii8620: Fix link mode selection
drm/bridge/sii8620: Fix display of packed pixel modes
drm/bridge/sii8620: Send AVI infoframe in all MHL versions
drm/amdgpu: fix user fence write race condition
drm/i915: Try GGTT mmapping whole object as partial
drm/amdgpu/pm: fix display count in non-DC path
drm/amdgpu: fix swapped emit_ib_size in vce3
drm: Use kvzalloc for allocating blob property memory
drm/i915/gvt: changed DDI mode emulation type
drm/i915/gvt: fix a bug of partially write ggtt enties
drm/exynos: Replace drm_dev_unref with drm_dev_put
drm/exynos: Replace drm_gem_object_unreference_unlocked with put function
drm/exynos: Replace drm_framebuffer_{un/reference} with put,get functions
drm/exynos: ipp: use correct enum type
drm/exynos: decon5433: Fix WINCONx reset value
drm/exynos: decon5433: Fix per-plane global alpha for XRGB modes
drm/exynos: fimc: Use real buffer width for configuring the hardware
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes and cleanups from Steven Rostedt:
"While cleaning out my INBOX, I found a few patches that were lost in
the noise. These are minor bug fixes and clean ups. Those include:
- avoid a string overflow
- code that didn't match the comment (but should)
- a small code optimization (use of a conditional)
- quiet printf warnings
- nuke unused code
- fix function graph interrupt annotation"
* tag 'trace-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix missing return symbol in function_graph output
ftrace: Nuke clear_ftrace_function
tracing: Use __printf markup to silence compiler
tracing: Optimize trace_buffer_iter() logic
tracing: Make create_filter() code match the comments
tracing: Avoid string overflow
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Fixups
- Fix several problems to IPPv2 merged to mainline recentely.
. An align problem of width size that IPP driver incorrectly
calculated the real buffer size.
. Horizontal and vertical flip problem.
. Per-plane global alpha for XRGB modes.
. Incorrect variant of the YUV modes.
- Fix plane overlapping problem.
. The stange order of overlapping planes on XRGB modes
by setting global alpha value to maximum value.
Cleanup
- Rename a enum type, drm_ipp_size_id, to one specific to Exynos,
drm_exynos_ipp_limit_type.
- Replace {un/reference} with {put,get} functions.
. it replaces several reference/unreference functions with Linux
kernel nameing standard.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530512041-21392-1-git-send-email-inki.dae@samsung.com
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into drm-fixes
- Fix an HDMI 2.0 4k@60 regression
- Hotplug fixes for PX/HG laptops
- Fixes for vbios changes in vega12
- Fix a race in the user fence code
- Fix a couple of misc typos
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180705155206.2752-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
A couple of GVT fixes, and a GGTT mmapping fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8736wxq35t.fsf@intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v4.18-rc4:
- A few small fixes for the sii8620 bridge.
- Allocate blob property memory using kvzalloc instead of kmalloc.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4267636e-bb7c-8f69-eeff-12e045b3e7e1@linux.intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omap for v4.18-rc cycle
Few dts fixes for regressions for various SoCs and
devices for touchscreen wake, dra7 USB quirk, pinmux
for beaglebone mmc, and emac clock.
Also included is a change for ti-sysc to use kcalloc
that Kees wanted to get into v4.18 as that's the last
one he wanted to fix for improved defense against
allocation overflows.
* tag 'omap-for-v4.18/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap3: Fix am3517 mdio and emac clock references
ARM: dts: am335x-bone-common: Fix mmc0 Write Protect
bus: ti-sysc: Use 2-factor allocator arguments
ARM: dts: dra7: Disable metastability workaround for USB2
ARM: dts: am437x: make edt-ft5x06 a wakeup source
Signed-off-by: Olof Johansson <olof@lixom.net>
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sgid directories have special semantics, making newly created files in
the directory belong to the group of the directory, and newly created
subdirectories will also become sgid. This is historically used for
group-shared directories.
But group directories writable by non-group members should not imply
that such non-group members can magically join the group, so make sure
to clear the sgid bit on non-directories for non-members (but remember
that sgid without group execute means "mandatory locking", just to
confuse things even more).
Reported-by: Jann Horn <jannh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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intel_{alloc,free}_coherent()"
This commit may cause a less than required dma mask to be used for
some allocations, which apparently leads to module load failures for
iwlwifi sometimes.
This reverts commit d657c5c73ca987214a6f9436e435b34fc60f332a.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Fabio Coatti <fabio.coatti@gmail.com>
Tested-by: Fabio Coatti <fabio.coatti@gmail.com>
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smb{2,3}_create_lease_buf() store a lease key in the lease
context for later usage on a lease break.
In most paths, the key is currently sourced from data that
happens to be on the stack near local variables for oplock in
SMB2_open() callers, e.g. from open_shroot(), whereas
smb2_open_file() properly allocates space on its stack for it.
The address of those local variables holding the oplock is then
passed to create_lease_buf handlers via SMB2_open(), and 16
bytes near oplock are used. This causes a stack out-of-bounds
access as reported by KASAN on SMB2.1 and SMB3 mounts (first
out-of-bounds access is shown here):
[ 111.528823] BUG: KASAN: stack-out-of-bounds in smb3_create_lease_buf+0x399/0x3b0 [cifs]
[ 111.530815] Read of size 8 at addr ffff88010829f249 by task mount.cifs/985
[ 111.532838] CPU: 3 PID: 985 Comm: mount.cifs Not tainted 4.18.0-rc3+ #91
[ 111.534656] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 111.536838] Call Trace:
[ 111.537528] dump_stack+0xc2/0x16b
[ 111.540890] print_address_description+0x6a/0x270
[ 111.542185] kasan_report+0x258/0x380
[ 111.544701] smb3_create_lease_buf+0x399/0x3b0 [cifs]
[ 111.546134] SMB2_open+0x1ef8/0x4b70 [cifs]
[ 111.575883] open_shroot+0x339/0x550 [cifs]
[ 111.591969] smb3_qfs_tcon+0x32c/0x1e60 [cifs]
[ 111.617405] cifs_mount+0x4f3/0x2fc0 [cifs]
[ 111.674332] cifs_smb3_do_mount+0x263/0xf10 [cifs]
[ 111.677915] mount_fs+0x55/0x2b0
[ 111.679504] vfs_kern_mount.part.22+0xaa/0x430
[ 111.684511] do_mount+0xc40/0x2660
[ 111.698301] ksys_mount+0x80/0xd0
[ 111.701541] do_syscall_64+0x14e/0x4b0
[ 111.711807] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 111.713665] RIP: 0033:0x7f372385b5fa
[ 111.715311] Code: 48 8b 0d 99 78 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 66 78 2c 00 f7 d8 64 89 01 48
[ 111.720330] RSP: 002b:00007ffff27049d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 111.722601] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f372385b5fa
[ 111.724842] RDX: 000055c2ecdc73b2 RSI: 000055c2ecdc73f9 RDI: 00007ffff270580f
[ 111.727083] RBP: 00007ffff2705804 R08: 000055c2ee976060 R09: 0000000000001000
[ 111.729319] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f3723f4d000
[ 111.731615] R13: 000055c2ee976060 R14: 00007f3723f4f90f R15: 0000000000000000
[ 111.735448] The buggy address belongs to the page:
[ 111.737420] page:ffffea000420a7c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0
[ 111.739890] flags: 0x17ffffc0000000()
[ 111.741750] raw: 0017ffffc0000000 0000000000000000 dead000000000200 0000000000000000
[ 111.744216] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 111.746679] page dumped because: kasan: bad access detected
[ 111.750482] Memory state around the buggy address:
[ 111.752562] ffff88010829f100: 00 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00 00
[ 111.754991] ffff88010829f180: 00 00 f2 f2 00 00 00 00 00 00 00 00 00 00 00 00
[ 111.757401] >ffff88010829f200: 00 00 00 00 00 f1 f1 f1 f1 01 f2 f2 f2 f2 f2 f2
[ 111.759801] ^
[ 111.762034] ffff88010829f280: f2 02 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00
[ 111.764486] ffff88010829f300: f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 111.766913] ==================================================================
Lease keys are however already generated and stored in fid data
on open and create paths: pass them down to the lease context
creation handlers and use them.
Suggested-by: Aurélien Aptel <aaptel@suse.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Fixes: b8c32dbb0deb ("CIFS: Request SMB2.1 leases")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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For every request we send, whether it is SMB1 or SMB2+, we attempt to
reconnect tcon (cifs_reconnect_tcon or smb2_reconnect) before carrying
out the request.
So, while server->tcpStatus != CifsNeedReconnect, we wait for the
reconnection to succeed on wait_event_interruptible_timeout(). If it
returns, that means that either the condition was evaluated to true, or
timeout elapsed, or it was interrupted by a signal.
Since we're not handling the case where the process woke up due to a
received signal (-ERESTARTSYS), the next call to
wait_event_interruptible_timeout() will _always_ fail and we end up
looping forever inside either cifs_reconnect_tcon() or smb2_reconnect().
Here's an example of how to trigger that:
$ mount.cifs //foo/share /mnt/test -o
username=foo,password=foo,vers=1.0,hard
(break connection to server before executing bellow cmd)
$ stat -f /mnt/test & sleep 140
[1] 2511
$ ps -aux -q 2511
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2511 0.0 0.0 12892 1008 pts/0 S 12:24 0:00 stat -f
/mnt/test
$ kill -9 2511
(wait for a while; process is stuck in the kernel)
$ ps -aux -q 2511
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2511 83.2 0.0 12892 1008 pts/0 R 12:24 30:01 stat -f
/mnt/test
By using 'hard' mount point means that cifs.ko will keep retrying
indefinitely, however we must allow the process to be killed otherwise
it would hang the system.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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A "small" CIFS buffer is not big enough in general to hold a
setacl request for SMB2, and we end up overflowing the buffer in
send_set_info(). For instance:
# mount.cifs //127.0.0.1/test /mnt/test -o username=test,password=test,nounix,cifsacl
# touch /mnt/test/acltest
# getcifsacl /mnt/test/acltest
REVISION:0x1
CONTROL:0x9004
OWNER:S-1-5-21-2926364953-924364008-418108241-1000
GROUP:S-1-22-2-1001
ACL:S-1-5-21-2926364953-924364008-418108241-1000:ALLOWED/0x0/0x1e01ff
ACL:S-1-22-2-1001:ALLOWED/0x0/R
ACL:S-1-22-2-1001:ALLOWED/0x0/R
ACL:S-1-5-21-2926364953-924364008-418108241-1000:ALLOWED/0x0/0x1e01ff
ACL:S-1-1-0:ALLOWED/0x0/R
# setcifsacl -a "ACL:S-1-22-2-1004:ALLOWED/0x0/R" /mnt/test/acltest
this setacl will cause the following KASAN splat:
[ 330.777927] BUG: KASAN: slab-out-of-bounds in send_set_info+0x4dd/0xc20 [cifs]
[ 330.779696] Write of size 696 at addr ffff88010d5e2860 by task setcifsacl/1012
[ 330.781882] CPU: 1 PID: 1012 Comm: setcifsacl Not tainted 4.18.0-rc2+ #2
[ 330.783140] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 330.784395] Call Trace:
[ 330.784789] dump_stack+0xc2/0x16b
[ 330.786777] print_address_description+0x6a/0x270
[ 330.787520] kasan_report+0x258/0x380
[ 330.788845] memcpy+0x34/0x50
[ 330.789369] send_set_info+0x4dd/0xc20 [cifs]
[ 330.799511] SMB2_set_acl+0x76/0xa0 [cifs]
[ 330.801395] set_smb2_acl+0x7ac/0xf30 [cifs]
[ 330.830888] cifs_xattr_set+0x963/0xe40 [cifs]
[ 330.840367] __vfs_setxattr+0x84/0xb0
[ 330.842060] __vfs_setxattr_noperm+0xe6/0x370
[ 330.843848] vfs_setxattr+0xc2/0xd0
[ 330.845519] setxattr+0x258/0x320
[ 330.859211] path_setxattr+0x15b/0x1b0
[ 330.864392] __x64_sys_setxattr+0xc0/0x160
[ 330.866133] do_syscall_64+0x14e/0x4b0
[ 330.876631] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 330.878503] RIP: 0033:0x7ff2e507db0a
[ 330.880151] Code: 48 8b 0d 89 93 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 bc 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 56 93 2c 00 f7 d8 64 89 01 48
[ 330.885358] RSP: 002b:00007ffdc4903c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
[ 330.887733] RAX: ffffffffffffffda RBX: 000055d1170de140 RCX: 00007ff2e507db0a
[ 330.890067] RDX: 000055d1170de7d0 RSI: 000055d115b39184 RDI: 00007ffdc4904818
[ 330.892410] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055d1170de7e4
[ 330.894785] R10: 00000000000002b8 R11: 0000000000000246 R12: 0000000000000007
[ 330.897148] R13: 000055d1170de0c0 R14: 0000000000000008 R15: 000055d1170de550
[ 330.901057] Allocated by task 1012:
[ 330.902888] kasan_kmalloc+0xa0/0xd0
[ 330.904714] kmem_cache_alloc+0xc8/0x1d0
[ 330.906615] mempool_alloc+0x11e/0x380
[ 330.908496] cifs_small_buf_get+0x35/0x60 [cifs]
[ 330.910510] smb2_plain_req_init+0x4a/0xd60 [cifs]
[ 330.912551] send_set_info+0x198/0xc20 [cifs]
[ 330.914535] SMB2_set_acl+0x76/0xa0 [cifs]
[ 330.916465] set_smb2_acl+0x7ac/0xf30 [cifs]
[ 330.918453] cifs_xattr_set+0x963/0xe40 [cifs]
[ 330.920426] __vfs_setxattr+0x84/0xb0
[ 330.922284] __vfs_setxattr_noperm+0xe6/0x370
[ 330.924213] vfs_setxattr+0xc2/0xd0
[ 330.926008] setxattr+0x258/0x320
[ 330.927762] path_setxattr+0x15b/0x1b0
[ 330.929592] __x64_sys_setxattr+0xc0/0x160
[ 330.931459] do_syscall_64+0x14e/0x4b0
[ 330.933314] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 330.936843] Freed by task 0:
[ 330.938588] (stack is not available)
[ 330.941886] The buggy address belongs to the object at ffff88010d5e2800
which belongs to the cache cifs_small_rq of size 448
[ 330.946362] The buggy address is located 96 bytes inside of
448-byte region [ffff88010d5e2800, ffff88010d5e29c0)
[ 330.950722] The buggy address belongs to the page:
[ 330.952789] page:ffffea0004357880 count:1 mapcount:0 mapping:ffff880108fdca80 index:0x0 compound_mapcount: 0
[ 330.955665] flags: 0x17ffffc0008100(slab|head)
[ 330.957760] raw: 0017ffffc0008100 dead000000000100 dead000000000200 ffff880108fdca80
[ 330.960356] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 330.963005] page dumped because: kasan: bad access detected
[ 330.967039] Memory state around the buggy address:
[ 330.969255] ffff88010d5e2880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 330.971833] ffff88010d5e2900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 330.974397] >ffff88010d5e2980: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[ 330.976956] ^
[ 330.979226] ffff88010d5e2a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 330.981755] ffff88010d5e2a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 330.984225] ==================================================================
Fix this by allocating a regular CIFS buffer in
smb2_plain_req_init() if the request command is SMB2_SET_INFO.
Reported-by: Jianhong Yin <jiyin@redhat.com>
Fixes: 366ed846df60 ("cifs: Use smb 2 - 3 and cifsacl mount options setacl function")
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-and-tested-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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This patch fixes a memory leak when doing a setxattr(2) in SMB2+.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
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SMB1 mounting broke in commit 35e2cc1ba755
("cifs: Use correct packet length in SMB2_TRANSFORM header")
Fix it and also rename smb2_rqst_len to smb_rqst_len
to make it less unobvious that the function is also called from
CIFS/SMB1
Good job by Paulo reviewing and cleaning up Ronnie's original patch.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Fixes: c713c8770fa5 ("cifs: push rfc1002 generation down the stack")
We failed to validate signed data returned by the server because
__cifs_calc_signature() now expects to sign the actual data in iov but
we were also passing down the rfc1002 length.
Fix smb3_calc_signature() to calculate signature of rfc1002 length prior
to passing only the actual data iov[1-N] to __cifs_calc_signature(). In
addition, there are a few cases where no rfc1002 length is passed so we
make sure there's one (iov_len == 4).
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Fixes: c713c8770fa5 ("cifs: push rfc1002 generation down the stack")
We failed to validate signed data returned by the server because
__cifs_calc_signature() now expects to sign the actual data in iov but
we were also passing down the rfc1002 length.
Fix smb3_calc_signature() to calculate signature of rfc1002 length prior
to passing only the actual data iov[1-N] to __cifs_calc_signature(). In
addition, there are a few cases where no rfc1002 length is passed so we
make sure there's one (iov_len == 4).
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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With protocol version 2.0 mounts we have seen crashes with corrupt mid
entries. Either the server->pending_mid_q list becomes corrupt with a
cyclic reference in one element or a mid object fetched by the
demultiplexer thread becomes overwritten during use.
Code review identified a race between the demultiplexer thread and the
request issuing thread. The demultiplexer thread seems to be written
with the assumption that it is the sole user of the mid object until
it calls the mid callback which either wakes the issuer task or
deletes the mid.
This assumption is not true because the issuer task can be woken up
earlier by a signal. If the demultiplexer thread has proceeded as far
as setting the mid_state to MID_RESPONSE_RECEIVED then the issuer
thread will happily end up calling cifs_delete_mid while the
demultiplexer thread still is using the mid object.
Inserting a delay in the cifs demultiplexer thread widens the race
window and makes reproduction of the race very easy:
if (server->large_buf)
buf = server->bigbuf;
+ usleep_range(500, 4000);
server->lstrp = jiffies;
To resolve this I think the proper solution involves putting a
reference count on the mid object. This patch makes sure that the
demultiplexer thread holds a reference until it has finished
processing the transaction.
Cc: stable@vger.kernel.org
Signed-off-by: Lars Persson <larper@axis.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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