diff options
| author | Steve French <stfrench@microsoft.com> | 2021-07-14 02:40:33 +0200 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2021-07-16 02:06:57 +0200 |
| commit | 63f94e946fafcfc5080b4a4aec9770158268e4ee (patch) | |
| tree | 7b2069ac9328a33967b1154336005704b042cba2 /fs | |
| parent | cifs: handle reconnect of tcon when there is no cached dfs referral (diff) | |
| download | linux-63f94e946fafcfc5080b4a4aec9770158268e4ee.tar.xz linux-63f94e946fafcfc5080b4a4aec9770158268e4ee.zip | |
cifs: fix missing null session check in mount
Although it is unlikely to be have ended up with a null
session pointer calling cifs_try_adding_channels in cifs_mount.
Coverity correctly notes that we are already checking for
it earlier (when we return from do_dfs_failover), so at
a minimum to clarify the code we should make sure we also
check for it when we exit the loop so we don't end up calling
cifs_try_adding_channels or mount_setup_tlink with a null
ses pointer.
Addresses-Coverity: 1505608 ("Derefernce after null check")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/connect.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d49c9e5c33fa..a1e870232114 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -3508,7 +3508,7 @@ int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx) rc = -ELOOP; } while (rc == -EREMOTE); - if (rc || !tcon) + if (rc || !tcon || !ses) goto error; kfree(ref_path); |