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WARNING in hci_conn_timeout

Status: upstream: reported C repro on 2020/08/01 17:09
Reported-by: syzbot+1a6290d59d61c9310dfd@syzkaller.appspotmail.com
First crash: 1364d, last: 418d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hci_conn_timeout bluetooth C done 5003 1h12m 1364d 0/26 upstream: reported C repro on 2020/08/01 18:55
linux-5.15 WARNING in hci_conn_timeout origin:lts-only C done 349 5h48m 413d 0/3 upstream: reported C repro on 2023/03/10 14:50
linux-4.14 WARNING in hci_conn_timeout C inconclusive 27 431d 1365d 0/1 upstream: reported C repro on 2020/07/31 02:13
linux-6.1 WARNING in hci_conn_timeout origin:lts-only C done 905 6h44m 415d 0/3 upstream: reported C repro on 2023/03/08 17:34
▶ ▼ Fix bisection attempts (14)
Created Duration User Patch Repo Result
2022/01/01 23:20 19m bisect fix linux-4.19.y error job log (0)
2021/10/05 19:18 33m bisect fix linux-4.19.y job log (0) log
2021/09/05 18:05 37m bisect fix linux-4.19.y job log (0) log
2021/08/06 17:20 27m bisect fix linux-4.19.y job log (0) log
2021/07/06 21:43 27m bisect fix linux-4.19.y job log (0) log
2021/05/23 05:25 32m bisect fix linux-4.19.y job log (0) log
2021/04/23 03:45 26m bisect fix linux-4.19.y job log (0) log
2021/03/23 23:22 26m bisect fix linux-4.19.y job log (0) log
2021/02/21 22:12 27m bisect fix linux-4.19.y job log (0) log
2021/02/18 10:16 19m bisect fix linux-4.19.y error job log (0)
2021/02/09 06:28 0m bisect fix linux-4.19.y error job log (0)
2020/12/07 01:10 28m bisect fix linux-4.19.y job log (0) log
2020/11/07 00:42 27m bisect fix linux-4.19.y job log (0) log
2020/10/08 00:12 29m bisect fix linux-4.19.y job log (0) log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8098 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold+0x11/0x18 net/bluetooth/hci_conn.c:404
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8098 Comm: kworker/u5:2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: hci0 hci_conn_timeout
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:hci_conn_timeout.cold+0x11/0x18 net/bluetooth/hci_conn.c:404
Code: 53 24 ff e8 c7 e2 4e f9 e8 12 a6 84 f9 48 c7 c7 80 92 5d 89 e8 32 bc 02 00 e8 b1 e2 4e f9 48 c7 c7 e0 99 5d 89 e8 10 14 e0 ff <0f> 0b e9 51 03 25 ff e8 99 e2 4e f9 e8 e4 a5 84 f9 48 c7 c7 c0 af
RSP: 0018:ffff888095007d10 EFLAGS: 00010286
RAX: 0000000000000024 RBX: ffff8880b16189a0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012a00f94
RBP: 00000000ffff5715 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b1618880
R13: ffff8880ab84f800 R14: ffff8880b24f8dc0 R15: ffff8880b1523000
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (127):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/17 23:09 linux-4.19.y 3f8a27f9e27b cf8c2d39 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/17 03:07 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/09 08:14 linux-4.19.y 3f8a27f9e27b 5fa28208 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/01/20 02:38 linux-4.19.y 3f8a27f9e27b 5da9499f .config console log report syz C ci2-linux-4-19 WARNING in hci_conn_timeout
2020/09/06 10:42 linux-4.19.y c37da90efff5 abf9ba4f .config console log report syz C ci2-linux-4-19
2020/08/01 17:09 linux-4.19.y 13af6c74b14a 8df85ed9 .config console log report syz C ci2-linux-4-19
2023/03/05 11:51 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/03/03 14:35 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/27 12:15 linux-4.19.y 3f8a27f9e27b 9189cb53 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/26 11:04 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/22 19:41 linux-4.19.y 3f8a27f9e27b 9f1e2cb3 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/19 23:10 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/13 02:12 linux-4.19.y 3f8a27f9e27b 93e26d60 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/02/02 13:01 linux-4.19.y 3f8a27f9e27b 9a6f477c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/21 15:35 linux-4.19.y 3f8a27f9e27b cc0f9968 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/16 11:55 linux-4.19.y 3f8a27f9e27b a63719e7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/15 17:53 linux-4.19.y 3f8a27f9e27b a63719e7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/14 03:58 linux-4.19.y 3f8a27f9e27b 529798b0 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/06 02:09 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2023/01/01 10:20 linux-4.19.y 3f8a27f9e27b ab32d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/30 03:21 linux-4.19.y 3f8a27f9e27b 44712fbc .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/24 06:45 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/23 02:09 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/20 02:48 linux-4.19.y 3f8a27f9e27b c52b2efb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/18 12:41 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/17 12:45 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/17 07:12 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/15 08:08 linux-4.19.y 3f8a27f9e27b b18f0a64 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/13 13:28 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/11 15:04 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/10 16:10 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/10 09:37 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/10 05:57 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/09 22:01 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/08 18:44 linux-4.19.y 3f8a27f9e27b 1034e5fa .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/06 12:23 linux-4.19.y 3f8a27f9e27b 045cbb84 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/03 16:41 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/12/01 07:14 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/30 14:33 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/27 21:19 linux-4.19.y 3f8a27f9e27b f4470a7b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/23 13:42 linux-4.19.y 3f8a27f9e27b 52fdf57a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/23 13:42 linux-4.19.y 3f8a27f9e27b 52fdf57a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/22 04:10 linux-4.19.y 3f8a27f9e27b 1c576c23 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/19 02:34 linux-4.19.y 3f8a27f9e27b 5bb70014 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/14 18:31 linux-4.19.y 3f8a27f9e27b 943f4cb8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/14 17:28 linux-4.19.y 3f8a27f9e27b 943f4cb8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/12 17:19 linux-4.19.y 3f8a27f9e27b f42ee5d8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/11 21:25 linux-4.19.y 3f8a27f9e27b f42ee5d8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/10 06:05 linux-4.19.y 3f8a27f9e27b b2488a87 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/09 03:42 linux-4.19.y 3f8a27f9e27b 5fa28208 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/11/05 14:00 linux-4.19.y 3f8a27f9e27b 6d752409 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2022/10/31 21:57 linux-4.19.y 3f8a27f9e27b 2a71366b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hci_conn_timeout
2021/01/10 06:28 linux-4.19.y 610bdbf6a174 2c1f2513 .config console log report info ci2-linux-4-19
* Struck through repros no longer work on HEAD.