This is a note to let you know that I've just added the patch titled
RDMA/core: Fix GID entry ref leak when create_ah fails
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma-core-fix-gid-entry-ref-leak-when-create_ah-fail.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bb7be809a345fa230e93841125cf53e7bc9f1229
Author: Saravanan Vajravel <saravanan.vajravel@xxxxxxxxxxxx>
Date: Fri Mar 31 23:34:24 2023 -0700
RDMA/core: Fix GID entry ref leak when create_ah fails
[ Upstream commit aca3b0fa3d04b40c96934d86cc224cccfa7ea8e0 ]
If AH create request fails, release sgid_attr to avoid GID entry
referrence leak reported while releasing GID table
Fixes: 1a1f460ff151 ("RDMA: Hold the sgid_attr inside the struct ib_ah/qp")
Link: https://lore.kernel.org/r/20230401063424.342204-1-saravanan.vajravel@xxxxxxxxxxxx
Reviewed-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 93a7ff1bd02c7..f61933dacbfd8 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -521,6 +521,8 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd,
ret = device->ops.create_ah(ah, ah_attr, flags, udata);
if (ret) {
+ if (ah->sgid_attr)
+ rdma_put_gid_attr(ah->sgid_attr);
kfree(ah);
return ERR_PTR(ret);
}
