AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-21 23:01:04 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
beacd6f7ed
linux_dsm_epyc7002/arch
History
Eric W. Biederman beacd6f7ed x86/mm/pkeys: Fix fill_sig_info_pkey 
SEGV_PKUERR is a signal specific si_code which happens to have the same
numeric value as several others: BUS_MCEERR_AR, ILL_ILLTRP, FPE_FLTOVF,
TRAP_HWBKPT, CLD_TRAPPED, POLL_ERR, SEGV_THREAD_ID, as such it is not safe
to just test the si_code the signal number must also be tested to prevent a
false positive in fill_sig_info_pkey.

This error was by inspection, and BUS_MCEERR_AR appears to be a real
candidate for confusion.  So pass in si_signo and check for SIG_SEGV to
verify that it is actually a SEGV_PKUERR

Fixes: 019132ff3d ("x86/mm/pkeys: Fill in pkey field in siginfo")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180112203135.4669-2-ebiederm@xmission.com
2018-01-14 12:14:51 +01:00
..
alpha
arc
arm kernel/exit.c: export abort() to modules 2018-01-04 16:45:09 -08:00
arm64 ARM: SoC fixes for 4.15 2018-01-04 11:14:36 -08:00
blackfin
c6x
cris
frv
h8300
hexagon
ia64
m32r kernel/exit.c: export abort() to modules 2018-01-04 16:45:09 -08:00
m68k Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-12-08 13:32:44 -08:00
metag
microblaze
mips Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-12-08 13:32:44 -08:00
mn10300
nios2
openrisc
parisc parisc: Reduce thread stack to 16 kb 2017-12-17 21:06:25 +01:00
powerpc kernel/irq: Extend lockdep class for request mutex 2017-12-28 12:26:35 +01:00
riscv RISC-V: Remove unused CONFIG_HVC_RISCV_SBI code 2017-12-11 07:51:09 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-01-05 12:17:33 -08:00
score
sh
sparc sparc64: repair calling incorrect hweight function from stubs 2017-12-27 20:29:48 -05:00
tile
um Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-23 11:53:04 -08:00
unicore32 kernel/exit.c: export abort() to modules 2018-01-04 16:45:09 -08:00
x86 x86/mm/pkeys: Fix fill_sig_info_pkey 2018-01-14 12:14:51 +01:00
xtensa
.gitignore
Kconfig