Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

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