linux-kernel - Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in skb_queue_purge

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Message-ID: <67a9e24a.050a0220.3d72c.0050.GAE@google.com>
Date: Mon, 10 Feb 2025 03:26:02 -0800
From: syzbot <syzbot+683f8cb11b94b1824c77@...kaller.appspotmail.com>
To: avkrasnov@...utedevices.com, hdanton@...a.com, 
	linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org, 
	luiz.dentz@...il.com, luiz.von.dentz@...el.com, marcel@...tmann.org, 
	netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in
 skb_queue_purge_reason (2)

syzbot has bisected this issue to:

commit c411c62cc13319533b1861e00cedc4883c3bc1bb
Author: Arseniy Krasnov <avkrasnov@...utedevices.com>
Date:   Thu Jan 30 18:43:26 2025 +0000

    Bluetooth: hci_uart: fix race during initialization

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=116cebdf980000
start commit:   40b8e93e17bf Add linux-next specific files for 20250204
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=136cebdf980000
console output: https://syzkaller.appspot.com/x/log.txt?x=156cebdf980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ec880188a87c6aad
dashboard link: https://syzkaller.appspot.com/bug?extid=683f8cb11b94b1824c77
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10b7eeb0580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12f74f64580000

Reported-by: syzbot+683f8cb11b94b1824c77@...kaller.appspotmail.com
Fixes: c411c62cc133 ("Bluetooth: hci_uart: fix race during initialization")

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