From: Xiubo Li <xiu...@redhat.com>
[ Upstream commit a7caa88f8b72c136f9a401f498471b8a8e35370d ]
If the ceph_mdsc_init() fails, it will free the mdsc already.
Reported-by: syzbot+b57f46d8d6ea51960...@syzkaller.appspotmail.com
Signed-off-by: Xiubo Li <xiu...@redhat.com>
Reviewed-by: Jeff Layton <jlay...@kernel.org>
Signed-off-by: Ilya Dryomov <idryo...@gmail.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
fs/ceph/mds_client.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 701bc3f4d4ba1..b0077f5a31688 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -4143,7 +4143,6 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
return -ENOMEM;
}
- fsc->mdsc = mdsc;
init_completion(&mdsc->safe_umount_waiters);
init_waitqueue_head(&mdsc->session_close_wq);
INIT_LIST_HEAD(&mdsc->waiting_for_map);
@@ -4195,6 +4194,8 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
strscpy(mdsc->nodename, utsname()->nodename,
sizeof(mdsc->nodename));
+
+ fsc->mdsc = mdsc;
return 0;
}
--
2.25.1
