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| author | Jann Horn <[email protected]> | 2019-05-29 11:31:57 +0000 |
|---|---|---|
| committer | Eric W. Biederman <[email protected]> | 2019-06-11 20:08:28 +0000 |
| commit | f6581f5b55141a95657ef5742cf6a6bfa20a109f (patch) | |
| tree | a0ccd00874d67118ab48624da6ecb633da8c6536 /scripts/decode_stacktrace.sh | |
| parent | signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO (diff) | |
| download | kernel-f6581f5b55141a95657ef5742cf6a6bfa20a109f.tar.gz kernel-f6581f5b55141a95657ef5742cf6a6bfa20a109f.zip | |
ptrace: restore smp_rmb() in __ptrace_may_access()
Restore the read memory barrier in __ptrace_may_access() that was deleted
a couple years ago. Also add comments on this barrier and the one it pairs
with to explain why they're there (as far as I understand).
Fixes: bfedb589252c ("mm: Add a user_ns owner to mm_struct and fix ptrace permission checks")
Cc: [email protected]
Acked-by: Kees Cook <[email protected]>
Acked-by: Oleg Nesterov <[email protected]>
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Eric W. Biederman <[email protected]>
Diffstat (limited to 'scripts/decode_stacktrace.sh')
0 files changed, 0 insertions, 0 deletions