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WARNING in hci_conn_timeout (2)

Status: upstream: reported C repro on 2024/12/17 17:47
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+fc4b5b2477d4ca272907@syzkaller.appspotmail.com
First crash: 151d, last: 2h50m
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[syzbot] Monthly bluetooth report (Apr 2025) 0 (1) 2025/04/22 10:11
[syzbot] Monthly bluetooth report (Mar 2025) 0 (1) 2025/03/20 23:48
[syzbot] Monthly bluetooth report (Feb 2025) 0 (1) 2025/02/17 12:44
[syzbot] Monthly bluetooth report (Jan 2025) 0 (1) 2025/01/17 10:35
[syzbot] [bluetooth?] WARNING in hci_conn_timeout (2) 0 (1) 2024/12/17 17:47
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hci_conn_timeout bluetooth C done 6022 151d 1749d 28/28 fixed on 2024/12/16 09:50
linux-5.15 WARNING in hci_conn_timeout origin:lts-only C done 1200 10h08m 798d 0/3 upstream: reported C repro on 2023/03/10 14:50
linux-4.14 WARNING in hci_conn_timeout C inconclusive 27 817d 1751d 0/1 upstream: reported C repro on 2020/07/31 02:13
linux-4.19 WARNING in hci_conn_timeout C error 127 803d 1749d 0/1 upstream: reported C repro on 2020/08/01 17:09
linux-6.1 WARNING in hci_conn_timeout origin:lts-only C done 3622 5h43m 800d 0/3 upstream: reported C repro on 2023/03/08 17:34

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5842 at net/bluetooth/hci_conn.c:567 hci_conn_timeout+0xfb/0x290 net/bluetooth/hci_conn.c:567
Modules linked in:
CPU: 1 UID: 0 PID: 5842 Comm: kworker/u9:9 Not tainted 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: hci4 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0xfb/0x290 net/bluetooth/hci_conn.c:567
Code: 4c 89 f7 e8 07 c2 09 00 eb 07 e8 20 32 ed f6 b0 13 0f b6 f0 4c 89 f7 5b 41 5c 41 5e 41 5f 5d e9 5b b3 fe ff e8 06 32 ed f6 90 <0f> 0b 90 eb 8f 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 36 ff ff ff 48
RSP: 0018:ffffc900040afb90 EFLAGS: 00010293
RAX: ffffffff8ab2419a RBX: ffff8880306948e8 RCX: ffff888011953c00
RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 0000000000000000
RBP: 00000000fffffffe R08: ffffffff8ab24103 R09: 1ffff110060d2802
R10: dffffc0000000000 R11: ffffed10060d2803 R12: dffffc0000000000
R13: ffffffff8168ee46 R14: ffff888030694000 R15: 0000000002400000
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11a8aab9b4 CR3: 0000000032b94000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (428):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/18 09:16 upstream aef25be35d23 a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in hci_conn_timeout
2024/12/17 12:45 upstream f44d154d6e3d f93b2b55 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in hci_conn_timeout
2025/02/26 18:57 upstream ac9c34d1e45a 6a8fcbc4 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2024/12/31 15:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/03/04 21:34 upstream 99fa936e8e4f c3901742 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/01/19 10:37 upstream fda5e3f28400 f2cb035c .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in hci_conn_timeout
2025/02/06 04:43 linux-next ed88b8b82c53 577d049b .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in hci_conn_timeout
2025/05/13 23:07 upstream e9565e23cd89 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/05/11 18:23 upstream 3ce9925823c7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in hci_conn_timeout
2025/05/11 15:36 upstream 3ce9925823c7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in hci_conn_timeout
2025/05/11 07:39 upstream 345030986df8 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in hci_conn_timeout
2025/04/29 21:44 upstream ca91b9500108 aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in hci_conn_timeout
2025/04/27 22:55 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/04/27 09:19 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/04/27 02:54 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/04/21 02:22 upstream ac71fabf1567 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/04/19 20:02 upstream 8560697b23dc 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in hci_conn_timeout
2025/04/12 10:13 upstream 3bde70a2c827 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in hci_conn_timeout
2025/04/10 18:36 upstream 2eb959eeecc6 988b336c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in hci_conn_timeout
2025/03/20 03:00 upstream a7f2e10ecd8f 3b7445cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in hci_conn_timeout
2025/05/17 02:32 upstream 3c21441eeffc cfde8269 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/16 05:02 upstream fee3e843b309 cfde8269 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/12 06:05 upstream cd802e7e5f1e 77908e5f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/08 21:04 upstream 2c89c1b655c0 bb813bcc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/08 16:15 upstream d76bb1ebb558 dbf35fa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/08 00:32 upstream 707df3375124 dbf35fa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/07 19:19 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/06 10:59 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/06 06:48 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/05 23:26 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/05 05:05 upstream 92a09c47464d b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/04 07:34 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/03 03:04 upstream 00b827f0cffa b0714e37 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/01 08:43 upstream 7a13c14ee59d ce7952f4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/05/01 00:33 upstream b6ea1680d0ac 937aafd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/30 20:44 upstream b6ea1680d0ac 937aafd7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/04/27 21:19 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/04/26 17:43 upstream f1a3944c860b c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/04/25 20:06 upstream 02ddfb981de8 dea5c7e4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/21 14:38 upstream 9d7a0577c9db 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/21 13:29 upstream 9d7a0577c9db 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/21 10:06 upstream 9d7a0577c9db 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/21 00:23 upstream 6fea5fabd332 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/20 13:44 upstream 119009db2674 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/17 14:30 upstream cfb2e2c57aef 552876f8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/04/16 19:53 upstream c62f4b82d571 a95239b1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/14 18:23 upstream 8ffd015db85f 0bd6db41 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/12 19:37 upstream 3bde70a2c827 0bd6db41 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in hci_conn_timeout
2025/04/12 18:30 upstream 3bde70a2c827 0bd6db41 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in hci_conn_timeout
2025/05/16 14:44 upstream fee3e843b309 cfde8269 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in hci_conn_timeout
2025/05/12 00:39 upstream cd802e7e5f1e 77908e5f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in hci_conn_timeout
2025/05/11 11:49 upstream 3ce9925823c7 77908e5f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in hci_conn_timeout
2025/04/25 11:05 upstream 02ddfb981de8 dea5c7e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in hci_conn_timeout
2025/04/24 23:25 upstream e72e9e693307 e3715315 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in hci_conn_timeout
2025/05/04 16:53 bpf b4432656b36e b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in hci_conn_timeout
2025/04/24 10:22 bpf f2858f308131 9c80ffa0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in hci_conn_timeout
2025/02/03 13:06 net 235174b2bed8 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in hci_conn_timeout
2025/05/17 04:04 bpf-next 9325d53fe9ad f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in hci_conn_timeout
2025/04/15 10:10 bpf-next a27a97f71394 23b969b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in hci_conn_timeout
2025/04/11 23:46 bpf-next a27a97f71394 12ba9c21 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in hci_conn_timeout
2025/03/13 12:32 net-next 0ea09cbf8350 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in hci_conn_timeout
2025/04/12 12:42 linux-next 01c6df60d5d4 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in hci_conn_timeout
2025/05/13 21:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c32f8dc5aaf9 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/05/13 19:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c32f8dc5aaf9 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/05/13 19:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c32f8dc5aaf9 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/05/05 14:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e0f4c8dd9d2d 6ca47dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/04/29 11:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 66d2d510fea3 aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/04/12 14:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2fe2b96c3818 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
2025/04/11 14:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2fe2b96c3818 12ba9c21 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_conn_timeout
* Struck through repros no longer work on HEAD.