diff options
| author |  Paulo Alcantara <pc@manguebit.com>
| 2024-04-02 16:33:56 -0300 |
|---|---|---|
| committer |  Steve French <stfrench@microsoft.com>
| 2024-04-03 14:43:45 -0500 |
| commit | 0865ffefea197b437ba78b5dd8d8e256253efd65 (patch) | |
| tree | 098f868fcbf90d063fa3d0bffa5296c1e759d14e /fs/smb | |
| parent | smb: client: fix potential UAF in cifs_stats_proc_write() (diff) | |
| download | linux-0865ffefea197b437ba78b5dd8d8e256253efd65.tar.gz linux-0865ffefea197b437ba78b5dd8d8e256253efd65.tar.bz2 linux-0865ffefea197b437ba78b5dd8d8e256253efd65.zip | |
smb: client: fix potential UAF in cifs_stats_proc_show()
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/cifs_debug.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c index 8535c9907462..c71ae5c04306 100644 --- a/fs/smb/client/cifs_debug.c +++ b/fs/smb/client/cifs_debug.c @@ -759,6 +759,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) } #endif /* STATS2 */ list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { + if (cifs_ses_exiting(ses)) + continue; list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { i++; seq_printf(m, "\n%d) %s", i, tcon->tree_name); |