diff options
| author | Paulo Alcantara <pc@manguebit.com> | 2024-04-02 22:34:04 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2024-04-03 22:45:15 +0300 |
| commit | e0e50401cc3921c9eaf1b0e667db174519ea939f (patch) | |
| tree | 551759339d123f9b5c149d69cd10cd842a10c40a /fs | |
| parent | 63981561ffd2d4987807df4126f96a11e18b0c1d (diff) | |
| download | linux-e0e50401cc3921c9eaf1b0e667db174519ea939f.tar.xz | |
smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
Skip sessions that are being teared down (status == SES_EXITING) to
avoid UAF.
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/smb/client/connect.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index 95e4bda4fd51..85679ae106fd 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -175,6 +175,8 @@ cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server, spin_lock(&cifs_tcp_ses_lock); list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) { + if (cifs_ses_exiting(ses)) + continue; spin_lock(&ses->chan_lock); for (i = 0; i < ses->chan_count; i++) { if (!ses->chans[i].server) |