6.6-stable review patch. If anyone has any objections, please let me know.
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From: Paulo Alcantara pc@manguebit.com
commit 0865ffefea197b437ba78b5dd8d8e256253efd65 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/cifs_debug.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/smb/client/cifs_debug.c +++ b/fs/smb/client/cifs_debug.c @@ -736,6 +736,8 @@ static int cifs_stats_proc_show(struct s } #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);