syzbot


WARNING in hci_conn_timeout

Status: upstream: reported C repro on 2020/08/01 18:55
Reported-by: syzbot+2446dd3cb07277388db6@syzkaller.appspotmail.com
First crash: 702d, last: 19d

Cause bisection: introduced by (bisect log) :
commit 3d30311c0e4d834c94e6a27d6242a942d6a76b85
Author: Varsha Rao <rvarsha016@gmail.com>
Date: Sun Oct 9 11:13:56 2016 +0000

  staging: vt6655: Removes unnecessary blank lines.

Crash: WARNING in nf_unregister_net_hook (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in hci_conn_timeout C inconclusive 23 41d 703d 0/1 upstream: reported C repro on 2020/07/31 02:13
linux-4.19 WARNING in hci_conn_timeout C error 20 1d02h 702d 0/1 upstream: reported C repro on 2020/08/01 17:09

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 3 PID: 3724 at net/bluetooth/hci_conn.c:573 hci_conn_timeout+0x32b/0x470 net/bluetooth/hci_conn.c:573
Modules linked in:
CPU: 3 PID: 3724 Comm: kworker/u19:2 Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: hci0 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x32b/0x470 net/bluetooth/hci_conn.c:573
Code: 00 48 c1 e8 03 80 3c 08 00 0f 85 1b 01 00 00 48 8b 35 c1 2a 68 05 bf 08 00 00 00 e8 bf 4b fa f8 e9 4c fe ff ff e8 75 fa 26 f9 <0f> 0b e9 61 fd ff ff 48 89 ef e8 36 1e 73 f9 e9 18 fd ff ff e8 0c
RSP: 0018:ffffc90002e2fce8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888026186138 RCX: 0000000000000000
RDX: ffff888028ad2200 RSI: ffffffff8852a86b RDI: 0000000000000005
RBP: 00000000ffff866d R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffff866d R11: 1ffffffff1fadb86 R12: ffff888026186000
R13: ffffc90002e2fda8 R14: ffff88801f85dd00 R15: ffff888015935800
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefef591368 CR3: 000000000ba8e000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2022/04/19 20:55 upstream 559089e0a93d e2d91b1d .config log report syz C
ci-upstream-kasan-gce 2021/12/09 17:18 upstream 2a987e65025e 7eb7e152 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/05/08 10:20 upstream dd860052c99b 79fb24e2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/04/08 09:57 upstream 454859c552da 79fb24e2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/03/03 17:31 upstream f69d02e37a85 79fb24e2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/01/25 22:58 upstream f8ad8187c3b5 79fb24e2 .config log report syz C
Crashes (57):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-qemu-upstream 2022/06/15 22:58 upstream 018ab4fabddd 1719ee24 .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2022/06/13 20:27 upstream b13baccc3850 0d5abf15 .config log report syz C WARNING in hci_conn_timeout
ci-qemu-upstream 2022/05/08 10:49 upstream 30c8e80f7932 e60b1103 .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2022/04/24 22:13 upstream 22da5264abf4 131df97d .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2022/03/18 19:34 upstream 551acdc3c3d2 e2d91b1d .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2022/02/26 01:15 upstream 53ab78cd6d5a 45a13a73 .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce 2021/09/02 10:22 upstream 835d31d319d9 7eb7e152 .config log report syz C WARNING in hci_conn_timeout
ci-upstream-linux-next-kasan-gce-root 2022/06/10 03:09 linux-next ff539ac73ea5 0d5abf15 .config log report syz C WARNING in hci_conn_timeout
ci-upstream-linux-next-kasan-gce-root 2022/03/20 19:39 linux-next 91265a6da44d e2d91b1d .config log report syz C WARNING in hci_conn_timeout
ci-upstream-kasan-gce-selinux-root 2020/09/12 06:32 upstream e8878ab82545 79fb24e2 .config log report syz C
ci-upstream-kasan-gce-root 2020/09/11 04:54 upstream 7fe10096c150 409809d8 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/07 06:25 upstream a8205e310011 abf9ba4f .config log report syz C
ci-upstream-kasan-gce 2020/09/06 17:53 upstream dd9fb9bb3340 abf9ba4f .config log report syz C
ci-upstream-kasan-gce 2020/08/14 03:03 upstream 990f227371a4 54ce1ed6 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/01 16:24 upstream 7dc6fd0f3b84 d895b3be .config log report syz C
ci-upstream-kasan-gce-386 2020/09/06 21:42 upstream dd9fb9bb3340 abf9ba4f .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/09/24 21:57 linux-next d1d2220c7f39 54289b08 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/05 18:50 linux-next 01830e6c042e b7129355 .config log report syz C
ci-upstream-kasan-gce 2022/05/28 23:23 upstream 9d004b2f4fea a46af346 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2022/05/25 13:12 upstream fdaf9a5840ac 647c0e27 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2022/01/20 04:42 upstream 1d1df41c5a33 5da9499f .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce 2022/01/06 14:58 upstream 75acfdb6fd92 6acc789a .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-selinux-root 2021/11/03 13:12 upstream dcd68326d29b 17f3edd2 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2021/10/27 13:20 upstream d25f27432f80 373bf66b .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2021/10/14 10:04 upstream 348949d9a444 5462d470 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2021/09/27 01:10 upstream 996148ee05d0 78494d16 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce 2021/08/29 21:51 upstream 3f5ad13cb012 be2c130d .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2021/08/16 13:02 upstream 7c60610d4767 33c26cb7 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-selinux-root 2021/08/02 21:17 upstream c500bee1c5b2 6c236867 .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2021/07/14 05:46 upstream 40226a3d96ef 484502bd .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-root 2021/07/11 12:15 upstream 3dbdb38e2869 8f5a7b8c .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce-smack-root 2021/06/11 07:25 upstream f09eacca59d2 1ba81399 .config log report info WARNING in hci_conn_timeout
ci-qemu2-arm64-mte 2021/03/08 16:56 upstream 144c79ef3353 09fbf400 .config log report info WARNING in hci_conn_timeout
ci-upstream-linux-next-kasan-gce-root 2022/02/16 05:31 linux-next ef6b35306dd8 8b9ca619 .config log report info WARNING in hci_conn_timeout
ci-upstream-linux-next-kasan-gce-root 2021/11/09 09:52 linux-next c8109c2ba35e 8ab17e57 .config log report info WARNING in hci_conn_timeout
ci-upstream-linux-next-kasan-gce-root 2021/06/02 08:55 linux-next a1f92694393a 032639db .config log report info WARNING in hci_conn_timeout
ci-upstream-kasan-gce 2020/12/26 22:20 upstream 40f78232f973 821e0b09 .config log report info
ci-upstream-kasan-gce 2020/12/15 18:56 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-smack-root 2020/11/28 08:15 upstream 99c710c46dfc 486f93ef .config log report info
ci-upstream-kasan-gce 2020/11/06 17:07 upstream 521b619acdc8 64069d48 .config log report info
ci-upstream-kasan-gce 2020/10/10 10:07 upstream 6f2f486d57c4 93817d89 .config log report info
ci-upstream-kasan-gce-root 2020/09/29 10:01 upstream fb0155a09b02 1b88c6d5 .config log report info
ci-upstream-kasan-gce-root 2020/09/24 13:49 upstream c9c9e6a49f89 54289b08 .config log report info
ci-upstream-kasan-gce-root 2020/09/24 12:03 upstream c9c9e6a49f89 54289b08 .config log report info
ci-upstream-kasan-gce 2020/08/31 14:24 upstream dcc5c6f013d8 d5a3ae1f .config log report
ci-upstream-kasan-gce-smack-root 2020/08/21 18:00 upstream da2968ff879b 6436ce4b .config log report
ci-upstream-kasan-gce-root 2020/08/13 05:29 upstream fb893de323e2 bc15f7db .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/08 05:35 upstream 5631c5e0eb90 ff51e522 .config log report
ci-upstream-kasan-gce-root 2020/08/08 05:28 upstream 5631c5e0eb90 ff51e522 .config log report
ci-upstream-kasan-gce-root 2020/08/06 06:14 upstream fffe3ae0ee84 0487ea6f .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/02 10:47 upstream ac3a0c847296 63a73341 .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/02 10:42 upstream ac3a0c847296 63a73341 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/11/11 23:05 linux-next 6dd65e60af98 cca87986 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/08/08 05:26 linux-next 01830e6c042e ff51e522 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/05 19:13 linux-next 01830e6c042e b7129355 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/02 12:18 linux-next 01830e6c042e 63a73341 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/02 12:17 linux-next 01830e6c042e 63a73341 .config log report