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1e5ac6300a07ceecfc70a893ebef3352be21e6f8
linux/drivers/char
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Milan Broz 1e5ac6300a tpm: Fix null pointer dereference on chip register error path 
If clk_enable is not defined and chip initialization
is canceled code hits null dereference.

Easily reproducible with vTPM init fail:
  swtpm chardev --tpmstate dir=nonexistent_dir --tpm2 --vtpm-proxy

BUG: kernel NULL pointer dereference, address: 00000000
...
Call Trace:
 tpm_chip_start+0x9d/0xa0 [tpm]
 tpm_chip_register+0x10/0x1a0 [tpm]
 vtpm_proxy_work+0x11/0x30 [tpm_vtpm_proxy]
 process_one_work+0x214/0x5a0
 worker_thread+0x134/0x3e0
 ? process_one_work+0x5a0/0x5a0
 kthread+0xd4/0x100
 ? process_one_work+0x5a0/0x5a0
 ? kthread_park+0x90/0x90
 ret_from_fork+0x19/0x24

Fixes: 719b7d81f2 ("tpm: introduce tpm_chip_start() and tpm_chip_stop()")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-08-05 00:55:00 +03:00
..
agp
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 10:39:56 -07:00
hw_random
docs: admin-guide: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
ipmi
Fix uninitialized variable in ipmb_dev_int.c
2019-07-24 15:53:21 -05:00
mwave
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
pcmcia
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18
2019-05-21 11:28:46 +02:00
tpm
tpm: Fix null pointer dereference on chip register error path
2019-08-05 00:55:00 +03:00
xilinx_hwicap
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
xillybus
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 402
2019-06-05 17:37:13 +02:00
adi.c
char: sparc64: Add privileged ADI driver
2018-06-05 11:24:55 -07:00
apm-emulation.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
applicom.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
applicom.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bsr.c
Merge 5.2-rc4 into char-misc-next
2019-06-09 09:11:21 +02:00
ds1620.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
dsp56k.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
dtlk.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
efirtc.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
hangcheck-timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 405
2019-06-05 17:37:13 +02:00
hpet.c
hpet: Fix division by zero in hpet_time_div()
2019-07-25 14:39:51 +02:00
Kconfig
docs: admin-guide: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
lp.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
Makefile
char/generic_nvram: Remove as unused
2019-01-22 10:21:45 +01:00
mbcs.c
mbcs: add .owner to mbcs struct file_operations
2019-01-22 14:56:00 +01:00
mbcs.h
…
mem.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
misc.c
char: misc: Move EXPORT_SYMBOL immediately next to the functions/varibles
2019-05-24 18:00:41 +02:00
mspec.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
nsc_gpio.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
nvram.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
nwbutton.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
nwbutton.h
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
nwflash.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
pc8736x_gpio.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
powernv-op-panel.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
ppdev.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ps3flash.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164
2019-05-30 11:26:38 -07:00
random.c
random: fix soft lockup when trying to read from an uninitialized blocking pool
2019-05-26 00:11:49 -04:00
raw.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
rtc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
scx200_gpio.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
snsc_event.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
2017-03-02 08:42:29 +01:00
snsc.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
snsc.h
…
sonypi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
tb0219.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
tlclk.c
tlclk: clean an indentation issue, remove extraneous tabs
2018-11-11 12:58:27 -08:00
toshiba.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 129
2019-05-30 11:25:14 -07:00
ttyprintk.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 402
2019-06-05 17:37:13 +02:00
uv_mmtimer.c
…
virtio_console.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00