linux-kernel - Re: [syzbot] [keyrings?] [lsm?] KASAN: slab-use-after-free Read in key

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Message-ID: <673c6a12.050a0220.87769.006b.GAE@google.com>
Date: Tue, 19 Nov 2024 02:36:02 -0800
From: syzbot <syzbot+6105ffc1ded71d194d6d@...kaller.appspotmail.com>
To: dhowells@...hat.com, jarkko.sakkinen@...nel.org, jarkko@...nel.org, 
	jmorris@...ei.org, keyrings@...r.kernel.org, lhenriques@...e.de, 
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org, 
	paul@...l-moore.com, serge@...lyn.com, surajsonawane0215@...il.com, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [keyrings?] [lsm?] KASAN: slab-use-after-free Read in key_put

syzbot has bisected this issue to:

commit 9578e327b2b4935a25d49e3891b8fcca9b6c10c6
Author: Luis Henriques <lhenriques@...e.de>
Date:   Tue Jan 30 10:13:44 2024 +0000

    keys: update key quotas in key_put()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10821bf7980000
start commit:   adc218676eef Linux 6.12
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=12821bf7980000
console output: https://syzkaller.appspot.com/x/log.txt?x=14821bf7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=55f8591b98dd132
dashboard link: https://syzkaller.appspot.com/bug?extid=6105ffc1ded71d194d6d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12dbbb5f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11c672e8580000

Reported-by: syzbot+6105ffc1ded71d194d6d@...kaller.appspotmail.com
Fixes: 9578e327b2b4 ("keys: update key quotas in key_put()")

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