diff options
| author | Hangyu Hua <hbh25y@gmail.com> | 2022-09-21 12:27:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-28 12:04:07 +0300 |
| commit | 903f7d322c17d8e306d766404b4604e81653902a (patch) | |
| tree | f12c5ce74061386eb71d9938fcd2b62c6f85fb4a | |
| parent | 0e8de8f54b04fa3a179ca34f6f18a1a5a569f435 (diff) | |
| download | linux-903f7d322c17d8e306d766404b4604e81653902a.tar.xz | |
net: sched: fix possible refcount leak in tc_new_tfilter()
[ Upstream commit c2e1cfefcac35e0eea229e148c8284088ce437b5 ]
tfilter_put need to be called to put the refount got by tp->ops->get to
avoid possible refcount leak when chain->tmplt_ops != NULL and
chain->tmplt_ops != tp->ops.
Fixes: 7d5509fa0d3d ("net: sched: extend proto ops with 'put' callback")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Link: https://lore.kernel.org/r/20220921092734.31700-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/sched/cls_api.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 919c7fa5f02d..48a8c7daa635 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -2098,6 +2098,7 @@ replay: } if (chain->tmplt_ops && chain->tmplt_ops != tp->ops) { + tfilter_put(tp, fh); NL_SET_ERR_MSG(extack, "Chain template is set to a different filter kind"); err = -EINVAL; goto errout; |