From: Aurelien Aptel <aaptel@suse.com>
Subject: [PATCH] cifs: add NULL check for ses->tcon_ipc
Git-commit: 59463eb88829f646aed13283fd84d02a475334fe
References: bsc#1178270
Patch-mainline: v5.10-rc7
In some scenarios (DFS and BAD_NETWORK_NAME) set_root_set() can be
called with a NULL ses->tcon_ipc.
Acked-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
fs/cifs/connect.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -4677,7 +4677,8 @@ static void set_root_ses(struct cifs_sb_
if (ses) {
spin_lock(&cifs_tcp_ses_lock);
ses->ses_count++;
- ses->tcon_ipc->remap = cifs_remap(cifs_sb);
+ if (ses->tcon_ipc)
+ ses->tcon_ipc->remap = cifs_remap(cifs_sb);
spin_unlock(&cifs_tcp_ses_lock);
}
*root_ses = ses;