cifs: fix incorrect use of list iterator after the loop

The bug is here:
if (!tcon) {
	resched = true;
	list_del_init(&ses->rlist);
	cifs_put_smb_ses(ses);

Because the list_for_each_entry() never exits early (without any
break/goto/return inside the loop), the iterator 'ses' after the
loop will always be an pointer to a invalid struct containing the
HEAD (&pserver->smb_ses_list). As a result, the uses of 'ses' above
will lead to a invalid memory access.

The original intention should have been to walk each entry 'ses' in
'&tmp_ses_list', delete '&ses->rlist' and put 'ses'. So fix it with
a list_for_each_entry_safe().

Cc: [email protected] # 5.17
Fixes: 3663c9045f51a ("cifs: check reconnects for channels of active tcons too")
Signed-off-by: Xiaomeng Tong <[email protected]>
Reviewed-by: Shyam Prasad N <[email protected]>
Signed-off-by: Steve French <[email protected]>

0 files changed, 0 insertions, 0 deletions