diff options
| author | Alexander Duyck <[email protected]> | 2015-03-12 14:46:23 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2015-03-12 18:26:51 -0400 |
| commit | 3c9e9f7320f0138497ef7879c0903246746e0ed3 (patch) | |
| tree | eea60b4c1788a31f550af86c8afccd9e616f9ebf /tools/perf/scripts/python/futex-contention.py | |
| parent | 80f1d68ccba70b1060c9c7360ca83da430f66bed (diff) | |
fib_trie: Avoid NULL pointer if local table is not allocated
The function fib_unmerge assumed the local table had already been
allocated. If that is not the case however when custom rules are applied
then this can result in a NULL pointer dereference.
In order to prevent this we must check the value of the local table pointer
and if it is NULL simply return 0 as there is no local table to separate
from the main.
Fixes: 0ddcf43d5 ("ipv4: FIB Local/MAIN table collapse")
Reported-by: Madhu Challa <[email protected]>
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions