linux-kernel - Re: [syzbot] [bluetooth?] possible deadlock in hci_dev_do

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <0000000000002d7a7f0617408af1@google.com>
Date: Mon, 29 Apr 2024 11:37:03 -0700
From: syzbot <syzbot+c55f7bc8d4809b2bad59@...kaller.appspotmail.com>
To: hdanton@...a.com, iam@...g-woo.kim, johan.hedberg@...il.com, 
	linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org, 
	luiz.dentz@...il.com, luiz.von.dentz@...el.com, marcel@...tmann.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bluetooth?] possible deadlock in hci_dev_do_close (2)

syzbot has bisected this issue to:

commit 37dd04e4d59487c928bf3561e4bd3a045762eabc
Author: Sungwoo Kim <iam@...g-woo.kim>
Date:   Thu Apr 25 04:11:28 2024 +0000

    Bluetooth: HCI: fix slab-use-after-free in cmd_sync_work

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14457fd8980000
start commit:   bb7a2467e6be Add linux-next specific files for 20240426
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16457fd8980000
console output: https://syzkaller.appspot.com/x/log.txt?x=12457fd8980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5c6a0288262dd108
dashboard link: https://syzkaller.appspot.com/bug?extid=c55f7bc8d4809b2bad59
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1590bcf8980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1349ee9b180000

Reported-by: syzbot+c55f7bc8d4809b2bad59@...kaller.appspotmail.com
Fixes: 37dd04e4d594 ("Bluetooth: HCI: fix slab-use-after-free in cmd_sync_work")

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