5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Enzo Matsumiya <ematsumiya@xxxxxxx>
[ Upstream commit 02c418774f76a0a36a6195c9dbf8971eb4130a15 ]
Unlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such
deadlock.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Enzo Matsumiya <ematsumiya@xxxxxxx>
Reviewed-by: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
Reviewed-by: Paulo Alcantara (Red Hat) <pc@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/cifs/smb2transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 0f2e0ce84a03f..ffae3a7f46ce4 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -194,8 +194,8 @@ smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32 tid)
}
tcon = smb2_find_smb_sess_tcon_unlocked(ses, tid);
if (!tcon) {
- cifs_put_smb_ses(ses);
spin_unlock(&cifs_tcp_ses_lock);
+ cifs_put_smb_ses(ses);
return NULL;
}
spin_unlock(&cifs_tcp_ses_lock);
--
2.43.0
