On Tuesday, October 26, 2021 12:33:23 AM CEST syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    87066fdd2e30 Revert "mm/secretmem: use refcount_t instead 
..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16b55554b00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d25eeb482b0f99b
> dashboard link: https://syzkaller.appspot.com/bug?
extid=7a942657a255a9d9b18a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=171cf464b00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1396b19f300000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the 
commit:
> Reported-by: syzbot+7a942657a255a9d9b18a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff88810f3c7980 (size 96):

Let's try the attached diff.

Fabio