Duoming Zhou 3f4093e2bf atm: idt77252: fix use-after-free bugs caused by tst_timer ... There are use-after-free bugs caused by tst_timer. The root cause is that there are no functions to stop tst_timer in idt77252_exit(). One of the possible race conditions is shown below: (thread 1) | (thread 2) | idt77252_init_one | init_card | fill_tst | mod_timer(&card->tst_timer, ...) idt77252_exit | (wait a time) | tst_timer | | ... kfree(card) // FREE | | card->soft_tst[e] // USE The idt77252_dev is deallocated in idt77252_exit() and used in timer handler. This patch adds del_timer_sync() in idt77252_exit() in order that the timer handler could be stopped before the idt77252_dev is deallocated. Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Duoming Zhou <duoming@zju.edu.cn> Link: https://lore.kernel.org/r/20220805070008.18007-1-duoming@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2022-08-08 20:51:59 -07:00
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.gitignore
adummy.c
atmtcp.c
eni.c
eni.h
fore200e.c
fore200e.h
he.c
he.h
idt77105.c
idt77105.h
idt77252.c	atm: idt77252: fix use-after-free bugs caused by tst_timer	2022-08-08 20:51:59 -07:00
idt77252.h
idt77252_tables.h
iphase.c
iphase.h
Kconfig
lanai.c
Makefile
midway.h
nicstar.c
nicstar.h
nicstarmac.c
nicstarmac.copyright
solos-attrlist.c
solos-pci.c
suni.c
suni.h
tonga.h
zeprom.h