This is a note to let you know that I've just added the patch titled
selftests/bpf: Fix a fd leak in error paths in open_netns
to the 6.6-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:
selftests-bpf-fix-a-fd-leak-in-error-paths-in-open_n.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 45eb3414d762a1f9b533822ba8295dfcf3845611
Author: Geliang Tang <tanggeliang@xxxxxxxxxx>
Date: Tue Apr 23 18:35:27 2024 +0800
selftests/bpf: Fix a fd leak in error paths in open_netns
[ Upstream commit 151f7442436658ee84076681d8f52e987fe147ea ]
As Martin mentioned in review comment, there is an existing bug that
orig_netns_fd will be leaked in the later "goto fail;" case after
open("/proc/self/ns/net") in open_netns() in network_helpers.c. This
patch adds "close(token->orig_netns_fd);" before "free(token);" to
fix it.
Fixes: a30338840fa5 ("selftests/bpf: Move open_netns() and close_netns() into network_helpers.c")
Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/a104040b47c3c34c67f3f125cdfdde244a870d3c.1713868264.git.tanggeliang@xxxxxxxxxx
Signed-off-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index da72a3a662300..0877b60ec81f6 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -427,6 +427,8 @@ struct nstoken *open_netns(const char *name)
return token;
fail:
+ if (token->orig_netns_fd != -1)
+ close(token->orig_netns_fd);
free(token);
return NULL;
}
