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authorPaulo Alcantara <pc@manguebit.com>2024-04-02 21:34:04 +0200
committerSteve French <stfrench@microsoft.com>2024-04-03 21:45:15 +0200
commite0e50401cc3921c9eaf1b0e667db174519ea939f (patch)
tree551759339d123f9b5c149d69cd10cd842a10c40a /fs/smb
parentsmb: client: fix potential UAF in smb2_is_network_name_deleted() (diff)
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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/smb')
-rw-r--r--fs/smb/client/connect.c2
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)