Re: [syzbot] KASAN: use-after-free Read in snd_rawmidi_transmit

From: syzbot
Date: Wed Jun 01 2022 - 11:35:19 EST


syzbot has bisected this issue to:

commit d098538ed4e8a6c09f86cf243f406c1451066040
Author: Sasha Neftin <sasha.neftin@xxxxxxxxx>
Date: Mon Mar 21 06:05:10 2022 +0000

igc: Remove igc_set_spd_dplx method

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16458313f00000
start commit: 2a5699b0de4e Merge tag 'leds-5.19-rc1' of git://git.kernel..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=15458313f00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11458313f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=f915857c44e13980
dashboard link: https://syzkaller.appspot.com/bug?extid=39e3268af9968f153591
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119d1fcbf00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17716bedf00000

Reported-by: syzbot+39e3268af9968f153591@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: d098538ed4e8 ("igc: Remove igc_set_spd_dplx method")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection