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| author |   Jeff Layton <jlayton@kernel.org> | 2021-07-01 10:41:46 -0400 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2021-09-02 22:49:16 +0200 |
| commit | 2ad32cf09bd28a21e6ad1595355a023ed631b529 (patch) | |
| tree | 9aeca97c8ed9da01f5eade7a814e0e7d040f5d60 /fs/ceph/caps.c | |
| parent | Linux 5.14 (diff) | |
| download | wireguard-linux-2ad32cf09bd28a21e6ad1595355a023ed631b529.tar.xz wireguard-linux-2ad32cf09bd28a21e6ad1595355a023ed631b529.zip | |
ceph: fix memory leak on decode error in ceph_handle_caps
If we hit a decoding error late in the frame, then we might exit the
function without putting the pool_ns string. Ensure that we always put
that reference on the way out of the function.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 39db97f149b9..c2d654156783 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -4134,8 +4134,9 @@ void ceph_handle_caps(struct ceph_mds_session *session, done: mutex_unlock(&session->s_mutex); done_unlocked: - ceph_put_string(extra_info.pool_ns); iput(inode); +out: + ceph_put_string(extra_info.pool_ns); return; flush_cap_releases: @@ -4150,7 +4151,7 @@ flush_cap_releases: bad: pr_err("ceph_handle_caps: corrupt message\n"); ceph_msg_dump(msg); - return; + goto out; } /* |