diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2018-01-03 19:04:34 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2018-01-12 14:23:53 -0600 |
| commit | 90bc9fb15942ad08b46cd003d8d1b51f3d43e322 (patch) | |
| tree | afdec849db739ddb9cfc401a3acb1290bb845a37 /include | |
| parent | 6ac1dc736b323011a55ecd1fc5897c24c4f77cbd (diff) | |
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.
I found this error by inspection, and BUS_MCEERR_AR appears to
be a real candidate for confusion. So pass in si_signo and fix it.
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Fixes: 019132ff3daf ("x86/mm/pkeys: Fill in pkey field in siginfo")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions