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| author | John Johansen <john.johansen@canonical.com> | 2017-11-08 08:09:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-08 10:56:22 -0800 |
| commit | f7dc4c9a855a13dbb33294c9fc94f17af03f6291 (patch) | |
| tree | 9ce322841e592dae220139d91d5e48e555987a70 /kernel/kallsyms.c | |
| parent | fbc3edf7d7731d7a22c483c679700589bab936a3 (diff) | |
apparmor: fix off-by-one comparison on MAXMAPPED_SIG
This came in yesterday, and I have verified our regression tests
were missing this and it can cause an oops. Please apply.
There is a an off-by-one comparision on sig against MAXMAPPED_SIG
that can lead to a read outside the sig_map array if sig
is MAXMAPPED_SIG. Fix this.
Verified that the check is an out of bounds case that can cause an oops.
Revised: add comparison fix to second case
Fixes: cd1dbf76b23d ("apparmor: add the ability to mediate signals")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kallsyms.c')
0 files changed, 0 insertions, 0 deletions