Hey Steve,
> On 2. Apr 2022, at 00:44, Steve French <smfrench@xxxxxxxxx> wrote:
>
> It looks like this no longer applies cleanly. Can you recheck
> fs/cifs/smb2pdu.c (function smb2_reconnect_server) and see if it
> applies now that it has changed e.g.
looks like this issue was already fixed in the meantime.
Feel free to ignore PATCH 1/2.
>
>
> /* allocate a dummy tcon struct used for reconnect */
> tcon = kzalloc(sizeof(struct cifs_tcon), GFP_KERNEL);
> if (!tcon) {
> resched = true;
> list_for_each_entry_safe(ses, ses2, &tmp_ses_list, rlist) {
> list_del_init(&ses->rlist);
> cifs_put_smb_ses(ses);
> }
> goto done;
> }
>
> You had this:
>
> --- fs/cifs/smb2pdu.c
> +++ fs/cifs/smb2pdu.c
> @@ -3858,7 +3858,7 @@ void smb2_reconnect_server(struct work_struct *work)
> tcon = kzalloc(sizeof(struct cifs_tcon), GFP_KERNEL);
> if (!tcon) {
> resched = true;
> - list_del_init(&ses->rlist);
> + list_del_init(&pserver->smb_ses_list);
> cifs_put_smb_ses(ses);
> goto done;
> }
>
> On Fri, Apr 1, 2022 at 2:23 AM Jakob Koschel <jakobkoschel@xxxxxxxxx> wrote:
>>
>> When list_for_each_entry() completes the iteration over the whole list
>> without breaking the loop, the iterator variable will *always* be a
>> bogus pointer computed based on the head element.
>>
>> To avoid type confusion use the actual list head directly instead of
>> the last iterator value.
>>
>> Signed-off-by: Jakob Koschel <jakobkoschel@xxxxxxxxx>
>> ---
>> fs/cifs/smb2pdu.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
>> index 7e7909b1ae11..4ac86b77a7c9 100644
>> --- a/fs/cifs/smb2pdu.c
>> +++ b/fs/cifs/smb2pdu.c
>> @@ -3858,7 +3858,7 @@ void smb2_reconnect_server(struct work_struct *work)
>> tcon = kzalloc(sizeof(struct cifs_tcon), GFP_KERNEL);
>> if (!tcon) {
>> resched = true;
>> - list_del_init(&ses->rlist);
>> + list_del_init(&pserver->smb_ses_list);
>> cifs_put_smb_ses(ses);
>> goto done;
>> }
>>
>> base-commit: f82da161ea75dc4db21b2499e4b1facd36dab275
>> --
>> 2.25.1
>>
>
>
> --
> Thanks,
>
> Steve
