diff options
| author | Norbert Slusarek <nslusarek@gmx.net> | 2021-05-12 00:43:54 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-05-12 08:52:47 +0200 |
| commit | 2b17c400aeb44daf041627722581ade527bb3c1d (patch) | |
| tree | 9698aa0e13520c2f97bc508c37a19a98906f751b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 440c3247cba3d9433ac435d371dd7927d68772a7 (diff) | |
can: isotp: prevent race between isotp_bind() and isotp_setsockopt()
A race condition was found in isotp_setsockopt() which allows to
change socket options after the socket was bound.
For the specific case of SF_BROADCAST support, this might lead to possible
use-after-free because can_rx_unregister() is not called.
Checking for the flag under the socket lock in isotp_bind() and taking
the lock in isotp_setsockopt() fixes the issue.
Fixes: 921ca574cd38 ("can: isotp: add SF_BROADCAST support for functional addressing")
Link: https://lore.kernel.org/r/trinity-e6ae9efa-9afb-4326-84c0-f3609b9b8168-1620773528307@3c-app-gmx-bs06
Reported-by: Norbert Slusarek <nslusarek@gmx.net>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Norbert Slusarek <nslusarek@gmx.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions