Piteball/android_kernel_samsung_msm8976
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android_kernel_samsung_msm8976/drivers
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Jeremy Compostella a450a53096 i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA 
commit 89c6efa61f5709327ecfa24bff18e57a4e80c7fa upstream.

On a I2C_SMBUS_I2C_BLOCK_DATA read request, if data->block[0] is
greater than I2C_SMBUS_BLOCK_MAX + 1, the underlying I2C driver writes
data out of the msgbuf1 array boundary.

It is possible from a user application to run into that issue by
calling the I2C_SMBUS ioctl with data.block[0] greater than
I2C_SMBUS_BLOCK_MAX + 1.

This patch makes the code compliant with
Documentation/i2c/dev-interface by raising an error when the requested
size is larger than 32 bytes.

Call Trace:
 [<ffffffff8139f695>] dump_stack+0x67/0x92
 [<ffffffff811802a4>] panic+0xc5/0x1eb
 [<ffffffff810ecb5f>] ? vprintk_default+0x1f/0x30
 [<ffffffff817456d3>] ? i2cdev_ioctl_smbus+0x303/0x320
 [<ffffffff8109a68b>] __stack_chk_fail+0x1b/0x20
 [<ffffffff817456d3>] i2cdev_ioctl_smbus+0x303/0x320
 [<ffffffff81745aed>] i2cdev_ioctl+0x4d/0x1e0
 [<ffffffff811f761a>] do_vfs_ioctl+0x2ba/0x490
 [<ffffffff81336e43>] ? security_file_ioctl+0x43/0x60
 [<ffffffff811f7869>] SyS_ioctl+0x79/0x90
 [<ffffffff81a22e97>] entry_SYSCALL_64_fastpath+0x12/0x6a

Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2019-07-27 21:46:30 +02:00
..
accessibility
acpi ACPI: APEI / ERST: Fix missing error handling in erst_reader() 2019-07-27 21:46:19 +02:00
amba
android ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES. 2018-02-06 13:12:16 +01:00
ata libata: array underflow in ata_find_dev() 2019-07-27 21:44:15 +02:00
atm
auxdisplay
base PM / Domains: Fix unsafe iteration over modified list of device links 2019-07-27 21:44:14 +02:00
battery Import T813XXS2BRC2 kernel source changes 2018-05-26 00:39:42 +02:00
battery_v2 Import latest Samsung release 2017-04-18 03:43:52 +02:00
bcma
bif
block loop: fix concurrent lo_open/lo_release 2018-08-20 11:56:48 +02:00
bluetooth Merge tag 'LA.BR.1.3.6-05410-8976.0' of https://source.codeaurora.org/quic/la/kernel/msm-3.10 into HEAD 2018-02-06 13:11:45 +01:00
bus
cdrom BACKPORT: block: add blk_rq_set_block_pc() 2017-04-22 23:03:01 +02:00
char drivers: char: mem: Fix wraparound check to allow mappings up to the end 2019-07-27 21:44:47 +02:00
clk clk: qcom: Remove unnecessary WARN 2019-07-27 21:45:56 +02:00
clocksource Merge tag 'LA.BR.1.3.6-05410-8976.0' of https://source.codeaurora.org/quic/la/kernel/msm-3.10 into HEAD 2018-02-06 13:11:45 +01:00
connector connector: bump skb->users before callback invocation 2016-01-28 21:49:33 -08:00
coresight coresight: tmc: Fix use after free issue with tmc read 2017-07-30 10:34:00 -07:00
cpufreq cpufreq: s3c2416: double free on driver init error path 2019-07-27 21:44:36 +02:00
cpuidle cpuidle: Remove unnecessary WARN for calculate_residency 2019-07-27 21:45:56 +02:00
crypto crypto: n2 - cure use after free 2019-07-27 21:46:21 +02:00
dca
debug Import latest Samsung release 2017-04-18 03:43:52 +02:00
debug_32 Import latest Samsung release 2017-04-18 03:43:52 +02:00
devfreq devfreq_devbw: Assign labels to devbw nodes. 2017-04-18 12:24:57 +02:00
dio
dma Merge remote-tracking branch 'f2fs/linux-3.10.y' into HEAD 2017-04-18 17:02:28 +02:00
edac This is the 3.10.102 stable release 2017-04-18 17:22:08 +02:00
eisa
esoc
extcon Import latest Samsung release 2017-04-18 03:43:52 +02:00
fingerprint drivers: fingerprint: Kill FEATURE_SPI_WAKELOCK 2017-04-19 17:02:36 +02:00
firewire This is the 3.10.95 stable release 2017-04-18 17:14:54 +02:00
firmware Import T813XXU2BQD1 kernel source changes 2017-04-22 16:30:03 +02:00
gpio gpio: Handle EPROBE_DEFER while probing 2019-07-27 21:45:55 +02:00
gpu drm: Reject page_flip for !DRIVER_MODESET 2019-07-27 21:42:22 +02:00
hid HID: i2c-hid: allocate hid buffers for real worst case 2019-07-27 21:45:51 +02:00
hsi
hv Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors 2016-06-07 10:42:52 +02:00
hwmon This is the 3.10.102 stable release 2017-04-18 17:22:08 +02:00
hwspinlock
i2c i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA 2019-07-27 21:46:30 +02:00
ide
idle
iio iio: adis_lib: Initialize trigger before requesting interrupt 2019-07-27 21:46:10 +02:00
infiniband IB/qib: fix mcast detach when qp not attached 2016-03-03 15:06:24 -08:00
input input: synaptics_dsx: remove unused synaptics touch screen driver files 2019-07-27 21:46:00 +02:00
iommu iommu/amd: Finish TLB flush in amd_iommu_unmap() 2019-07-27 21:44:19 +02:00
ipack
irqchip Import latest Samsung release 2017-04-18 03:43:52 +02:00
isdn ppp, slip: Validate VJ compression slot parameters completely 2016-01-28 21:49:35 -08:00
leds Merge tag 'LA.BR.1.3.6-03510-8976.0' into HEAD 2017-04-18 12:11:50 +02:00
lguest Import latest Samsung release 2017-04-18 03:43:52 +02:00
macintosh
mailbox
md dm btree: fix serious bug in btree_split_beneath() 2019-07-27 21:46:30 +02:00
media ir-core: fix gcc-7 warning on bool arithmetic 2019-07-27 21:44:38 +02:00
memory
memstick
message
mfd mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode 2019-07-27 21:44:34 +02:00
misc qseecom: Fix typo in format specifier 2019-07-27 21:44:44 +02:00
mmc mmc: mxs-mmc: Fix additional cycles after transmission stop 2019-07-27 21:43:00 +02:00
motor Import latest Samsung release 2017-04-18 03:43:52 +02:00
mtd This is the 3.10.102 stable release 2017-04-18 17:22:08 +02:00
muic Import T813XXS2BRC2 kernel source changes 2018-05-26 00:39:42 +02:00
net tun: call dev_get_valid_name() before register_netdevice() 2019-07-27 21:45:50 +02:00
nfc Import latest Samsung release 2017-04-18 03:43:52 +02:00
ntb
nubus
of of: fdt: add missing allocation-failure check 2019-07-27 21:44:47 +02:00
oprofile
parisc parisc iommu: fix panic due to trying to allocate too large region 2016-01-28 21:49:36 -08:00
parport
pci PCI / PM: Force devices to D0 in pci_pm_thaw_noirq() 2019-07-27 21:46:19 +02:00
pcmcia
phy
pinctrl pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE 2019-07-27 21:43:46 +02:00
platform Merge tag 'LA.BR.1.3.6-05410-8976.0' of https://source.codeaurora.org/quic/la/kernel/msm-3.10 into HEAD 2018-02-06 13:11:45 +01:00
pnp asmlinkage, pnp: Make variables used from assembler code visible 2016-06-07 10:42:53 +02:00
power angler: remove 'reboot edl' interface for security 2018-05-26 00:39:32 +02:00
pps
ps3
ptp
pwm
rapidio
regulator Merge remote-tracking branch 'f2fs/linux-3.10.y' into HEAD 2017-04-18 17:02:28 +02:00
remoteproc remoteproc: avoid stack overflow in debugfs file 2016-02-19 14:22:37 -08:00
reset
rpmsg
rtc rtc: set the alarm to the next expiring timer 2019-07-27 21:46:00 +02:00
s390 scsi: zfcp: trace HBA FSF response by default on dismiss or timedout late response 2019-07-27 21:44:18 +02:00
sbus
scsi scsi: use dma_get_cache_alignment() as minimum DMA alignment 2019-07-27 21:46:11 +02:00
sensorhub Import T713XXU2BQD3 kernel source changes 2017-07-01 12:51:07 +02:00
sensors Import latest Samsung release 2017-04-18 03:43:52 +02:00
sfi
sh
slimbus slim-msm: Synchronize SSR callbacks 2017-05-05 19:20:28 +00:00
sn
soc ASoC: apr: Add validity check to APR port 2018-08-20 12:08:44 +02:00
soundwire swr-wcd-ctrl: Ensure soundwire banks are always in sync 2016-05-03 04:51:39 -07:00
spi This is the 3.10.97 stable release 2017-04-18 17:17:20 +02:00
spmi Merge tag 'LA.BR.1.3.6-03510-8976.0' into HEAD 2017-04-18 12:11:50 +02:00
ssb
ssbi
staging Import T813XXS2BRC2 kernel source changes 2018-05-26 00:39:42 +02:00
switch
target target: Avoid mappedlun symlink creation during lun shutdown 2019-07-27 21:44:16 +02:00
tc
thermal msm_thermal: Handle defer while probing 2019-07-27 21:45:58 +02:00
tty n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD) 2019-07-27 21:46:21 +02:00
uio uio: fix dmem_region_start computation 2019-07-27 21:42:50 +02:00
usb USB: fix usbmon BUG trigger 2019-07-27 21:46:28 +02:00
uwb
vfio
vhost Merge remote-tracking branch 'f2fs/linux-3.10.y' into HEAD 2017-04-18 17:02:28 +02:00
video video: msm: samsung: Fix mode_max permissions 2019-07-27 21:45:54 +02:00
virt
virtio virtio: fix memory leak of virtio ida cache layers 2016-03-03 15:06:21 -08:00
vlynq
vme
w1
watchdog watchdog: rc32434_wdt: fix ioctl error handling 2016-06-07 10:42:46 +02:00
xen This is the 3.10.96 stable release 2017-04-18 17:16:02 +02:00
zorro
Kconfig msm: gud: Remove gud driver 2017-09-08 18:49:12 +00:00
Makefile msm: gud: Remove gud driver 2017-09-08 18:49:12 +00:00