Akhil P Oommen 3cbdc8d8b7 drm/msm: Fix a null pointer access in msm_gem_shrinker_count() ... Adding an msm_gem_object object to the inactive_list before completing its initialization is a bad idea because shrinker may pick it up from the inactive_list. Fix this by making sure that the initialization is complete before moving the msm_obj object to the inactive list. This patch fixes the below error: [10027.553044] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068 [10027.573305] Mem abort info: [10027.590160] ESR = 0x96000006 [10027.597905] EC = 0x25: DABT (current EL), IL = 32 bits [10027.614430] SET = 0, FnV = 0 [10027.624427] EA = 0, S1PTW = 0 [10027.632722] Data abort info: [10027.638039] ISV = 0, ISS = 0x00000006 [10027.647459] CM = 0, WnR = 0 [10027.654345] user pgtable: 4k pages, 39-bit VAs, pgdp=00000001e3a6a000 [10027.672681] [0000000000000068] pgd=0000000198c31003, pud=0000000198c31003, pmd=0000000000000000 [10027.693900] Internal error: Oops: 96000006 [#1] PREEMPT SMP [10027.738261] CPU: 3 PID: 214 Comm: kswapd0 Tainted: G S 5.4.40 #1 [10027.745766] Hardware name: Qualcomm Technologies, Inc. SC7180 IDP (DT) [10027.752472] pstate: 80c00009 (Nzcv daif +PAN +UAO) [10027.757409] pc : mutex_is_locked+0x14/0x2c [10027.761626] lr : msm_gem_shrinker_count+0x70/0xec [10027.766454] sp : ffffffc011323ad0 [10027.769867] x29: ffffffc011323ad0 x28: ffffffe677e4b878 [10027.775324] x27: 0000000000000cc0 x26: 0000000000000000 [10027.780783] x25: ffffff817114a708 x24: 0000000000000008 [10027.786242] x23: ffffff8023ab7170 x22: 0000000000000001 [10027.791701] x21: ffffff817114a080 x20: 0000000000000119 [10027.797160] x19: 0000000000000068 x18: 00000000000003bc [10027.802621] x17: 0000000004a34210 x16: 00000000000000c0 [10027.808083] x15: 0000000000000000 x14: 0000000000000000 [10027.813542] x13: ffffffe677e0a3c0 x12: 0000000000000000 [10027.819000] x11: 0000000000000000 x10: ffffff8174b94340 [10027.824461] x9 : 0000000000000000 x8 : 0000000000000000 [10027.829919] x7 : 00000000000001fc x6 : ffffffc011323c88 [10027.835373] x5 : 0000000000000001 x4 : ffffffc011323d80 [10027.840832] x3 : ffffffff0477b348 x2 : 0000000000000000 [10027.846290] x1 : ffffffc011323b68 x0 : 0000000000000068 [10027.851748] Call trace: [10027.854264] mutex_is_locked+0x14/0x2c [10027.858121] msm_gem_shrinker_count+0x70/0xec [10027.862603] shrink_slab+0xc0/0x4b4 [10027.866187] shrink_node+0x4a8/0x818 [10027.869860] kswapd+0x624/0x890 [10027.873097] kthread+0x11c/0x12c [10027.876424] ret_from_fork+0x10/0x18 [10027.880102] Code: f9000bf3 910003fd aa0003f3 d503201f (f9400268) [10027.886362] ---[ end trace df5849a1a3543251 ]--- [10027.891518] Kernel panic - not syncing: Fatal exception Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>		2020-07-31 06:46:15 -07:00
..
accessibility	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
acpi	Merge branch 'acpi-fan'	2020-07-03 16:15:31 +02:00
amba	ARM: tegra: Replace zero-length array with flexible-array	2020-06-15 23:08:28 -05:00
android	binder: fix null deref of proc->context	2020-06-23 07:54:46 +02:00
ata	libata-5.8-2020-06-19	2020-06-19 13:09:40 -07:00
atm	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
auxdisplay	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
base	regmap: Fixes for v5.8	2020-07-17 09:58:18 -07:00
bcma
block	Char/Misc fixes for 5.8-rc6	2020-07-16 11:26:40 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-06-03 16:27:18 -07:00
bus	bus: ti-sysc: Do not disable on suspend for no-idle	2020-07-02 13:57:57 -07:00
cdrom	Merge branch 'work.sysctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-06-10 16:05:54 -07:00
char	Linux 5.8-rc6	2020-07-24 08:48:05 +10:00
clk	A couple build fixes for issues exposed this merge window and a fix for	2020-07-15 19:00:12 -07:00
clocksource	arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040	2020-07-08 21:57:51 +01:00
connector	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
counter	counter: 104-quad-8: Add lock guards - filter clock prescaler	2020-06-14 14:46:52 +01:00
cpufreq	cpufreq: intel_pstate: Fix active mode setting from command line	2020-07-13 17:55:57 +02:00
cpuidle	cpuidle: Rearrange s2idle-specific idle state entry code	2020-06-25 13:52:53 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-06-21 10:01:03 -07:00
dax	device-dax: add memory via add_memory_driver_managed()	2020-06-04 19:06:23 -07:00
dca
devfreq
dio	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
dma	Linux 5.8-rc6	2020-07-24 08:48:05 +10:00
dma-buf	Linux 5.8-rc6	2020-07-24 08:48:05 +10:00
edac	EDAC/amd64: Read back the scrub rate PCI register on F15h	2020-06-18 20:25:25 +02:00
eisa	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
extcon
firewire	firewire: ohci: Replace zero-length array with flexible-array	2020-06-15 23:08:31 -05:00
firmware	arm64 fixes for -rc6	2020-07-17 15:27:52 -07:00
fpga	FPGA Manager fixes for 5.8-rc1	2020-06-26 17:26:31 +02:00
fsi	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
gnss	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
gpio	gpio fixes for v5.8-rc3	2020-06-26 23:53:25 +02:00
gpu	drm/msm: Fix a null pointer access in msm_gem_shrinker_count()	2020-07-31 06:46:15 -07:00
greybus	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid into master	2020-07-17 09:43:13 -07:00
hsi	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
hv	Drivers: hv: Change flag to write log level in panic msg to false	2020-06-29 10:30:35 +00:00
hwmon	hwmon: (drivetemp) Avoid SCT usage on Toshiba DT01ACA family drives	2020-07-18 08:11:44 -07:00
hwspinlock
hwtracing	intel_th: Fix a NULL dereference when hub driver is not loaded	2020-07-10 15:12:48 +02:00
i2c	i2c: mlxcpld: check correct size of maximum RECV_LEN packet	2020-07-04 08:20:38 +02:00
i3c
ide	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
idle
iio	First set of IIO and counter fixes in the 5.8 cycle.	2020-07-08 09:20:50 +02:00
infiniband	RDMA/mlx5: Set PD pointers for the error flow unwind	2020-07-08 20:15:59 -03:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-07-13 18:31:15 -07:00
interconnect	More power management updates for 5.8-rc1	2020-06-10 14:04:39 -07:00
iommu	Two fixes for the interrupt subsystem:	2020-07-19 11:53:08 -07:00
ipack	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
irqchip	Bugfixes and a one-liner patch to silence sparse.	2020-07-06 12:48:04 -07:00
isdn	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
leds	LEDs pull request for 5.8-rc1.	2020-06-04 11:03:45 -07:00
lightnvm	for-5.8/block-2020-06-01	2020-06-02 15:29:19 -07:00
macintosh	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
mailbox	mailbox: qcom: Add ipq6018 apcs compatible	2020-06-10 22:43:57 -05:00
mcb
md	dm: use noio when sending kobject event	2020-07-08 12:50:51 -04:00
media	media: omap3isp: remove cacheflush.h	2020-06-26 00:27:37 -07:00
memory
memstick
message	scsi: mptfusion: Don't use GFP_ATOMIC for larger DMA allocations	2020-06-26 22:51:53 -04:00
mfd	irqdomain/treewide: Keep firmware node unconditionally allocated	2020-07-14 17:44:42 +02:00
misc	mei: bus: don't clean driver pointer	2020-06-29 19:10:51 +02:00
mmc	mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied	2020-07-08 15:30:35 +02:00
most
mtd	mtd: rawnand: xway: Fix build issue	2020-07-07 21:04:38 +02:00
mux
net	mlxsw: pci: Fix use-after-free in case of failed devlink reload	2020-07-10 14:33:34 -07:00
nfc	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
ntb	NTB: perf: Fix race condition when run with ntb_test	2020-06-05 20:02:09 -04:00
nubus
nvdimm	libnvdimm/security: Fix key lookup permissions	2020-07-08 17:08:01 -07:00
nvme	nvme: explicitly update mpath disk capacity on revalidation	2020-07-16 16:40:27 +02:00
nvmem
of	Linux 5.8-rc6	2020-07-24 08:48:05 +10:00
opp	opp: Increase parsed_static_opps in _of_add_opp_table_v1()	2020-07-16 08:50:54 +05:30
oprofile	oprofile: Replace zero-length array with flexible-array	2020-06-15 23:08:32 -05:00
parisc
parport	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
pci	irqdomain/treewide: Keep firmware node unconditionally allocated	2020-07-14 17:44:42 +02:00
pcmcia	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
perf	drivers/perf: Prevent forced unbinding of PMU drivers	2020-07-17 10:51:44 +01:00
phy	phy: fixes for 5.8	2020-07-08 18:00:07 +02:00
pinctrl	intel-pinctrl for v5.8-2	2020-06-28 01:08:21 +02:00
platform	platform/x86: asus-wmi: allow BAT1 battery name	2020-07-15 12:47:04 +03:00
pnp	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
power	power supply and reset changes for the v5.8 series	2020-06-10 11:28:35 -07:00
powercap	Kbuild updates for v5.8 (2nd)	2020-06-13 13:29:16 -07:00
pps	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
ps3
ptp	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
pwm	pwm: Add missing "CONFIG_" prefix	2020-06-04 19:09:28 +02:00
rapidio	rapidio: Replace zero-length array with flexible-array	2020-06-15 23:08:32 -05:00
ras
regulator	regulator: rename da903x to da903x-regulator	2020-06-25 15:29:21 +01:00
remoteproc	remoteproc updates for v5.8	2020-06-08 13:01:08 -07:00
reset	Char/Misc driver patches for 5.8-rc1	2020-06-07 10:59:32 -07:00
rpmsg	remoteproc updates for v5.8	2020-06-08 13:01:08 -07:00
rtc	RTC for 5.8	2020-06-07 16:11:23 -07:00
s390	vfio-ccw: Fix a build error due to missing include of linux/slab.h	2020-07-03 11:41:31 +02:00
sbus	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
scsi	scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macro	2020-07-15 16:16:45 -04:00
sfi	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
sh
siox
slimbus
soc	i.MX fixes for 5.8, round 2:	2020-07-16 22:08:07 +02:00
soundwire	soundwire: intel: fix memory leak with devm_kasprintf	2020-06-22 17:15:20 +05:30
spi	spi: Fixes for v5.8	2020-07-17 10:24:09 -07:00
spmi
ssb
staging	staging: comedi: verify array index is correct before using it	2020-07-10 14:03:00 +02:00
target	Kbuild updates for v5.8 (2nd)	2020-06-13 13:29:16 -07:00
tc
tee	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
thermal	- Fix invalid index array access on int340x_thermal leading to a	2020-07-16 11:08:54 -07:00
thunderbolt	thunderbolt: Fix path indices used in USB3 tunnel discovery	2020-06-25 15:45:30 +03:00
tty	TTY/Serial driver fixes for 5.8-rc6	2020-07-16 11:10:27 -07:00
uio	uio_pdrv_genirq: fix use without device tree and no interrupt	2020-07-03 10:52:02 +02:00
usb	USB-serial fixes for 5.8-rc6	2020-07-16 17:30:59 +02:00
vdpa	vdpa: fix typos in the comments for __vdpa_alloc_device()	2020-06-22 12:34:21 -04:00
vfio	vfio/pci: Fix SR-IOV VF handling with MMIO blocking	2020-06-25 11:04:23 -06:00
vhost	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
video	Linux 5.8-rc6	2020-07-24 08:48:05 +10:00
virt	virt: vbox: Fix guest capabilities mask check	2020-07-10 13:40:19 +02:00
virtio	virtio-mem: add memory via add_memory_driver_managed()	2020-06-22 12:34:21 -04:00
visorbus	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
vlynq
vme	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
w1	w1: Replace zero-length array with flexible-array	2020-06-15 23:08:32 -05:00
watchdog	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
xen	xen: branch for v5.8-rc5	2020-07-11 11:16:46 -07:00
zorro	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Kconfig
Makefile