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WARNING in call_timer_fn

Status: upstream: reported syz repro on 2022/11/16 15:25
Labels: bluetooth (incorrect?)
Reported-by: syzbot+6fb78d577e89e69602f9@syzkaller.appspotmail.com
First crash: 198d, last: 4d16h

Cause bisection: introduced by (bisect log) [merge commit]:
commit 35c71aa04a13c20b7b1f01200cdd8a09842e58c8
Author: Jakub Kicinski <kuba@kernel.org>
Date: Fri Jan 28 02:59:39 2022 +0000

  Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Crash: WARNING: ODEBUG bug in netdev_run_todo (log)
Repro: syz .config
▶ ▼ Discussions (7)
Title Replies (including bot) Last reply
[syzbot] Monthly bluetooth report (May 2023) 0 (1) 2023/05/30 20:52
[syzbot] Monthly bluetooth report (Apr 2023) 0 (1) 2023/04/30 08:00
[syzbot] Monthly bluetooth report 0 (1) 2023/03/29 10:03
Re: [syzbot] WARNING in call_timer_fn 1 (1) 2022/11/18 20:01
Re: [syzbot] WARNING in call_timer_fn 5 (5) 2022/11/18 01:17
Re: [syzbot] WARNING in call_timer_fn 1 (1) 2022/11/17 11:54
[syzbot] WARNING in call_timer_fn 1 (2) 2022/11/16 18:29
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in call_timer_fn 5 9d23h 86d 0/3 upstream: reported on 2023/03/08 12:11
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2022/11/17 01:08 14m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git 7eba4505394e report log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5601 at kernel/workqueue.c:1438 __queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Modules linked in:
CPU: 0 PID: 5601 Comm: syz-executor.0 Not tainted 6.2.0-rc5-syzkaller-00108-g83abd4d4c4be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Code: e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 08 e2 7c 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 b9 d3 2e 00 85 db 75 42 e8 00 d7 2e 00 <0f> 0b e9 7e f7 ff ff e8 f4 d6 2e 00 0f 0b e9 10 f7 ff ff e8 e8 d6
RSP: 0018:ffffc90000007c98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000100 RCX: 0000000000000100
RDX: ffff88801eb80000 RSI: ffffffff81528af0 RDI: 0000000000000005
RBP: ffffc90000007d60 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: ffff8880226e4b30
R13: ffff8880226e4b78 R14: 0000000000000000 R15: ffff8880752d6800
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737b044 CR3: 000000000c48e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1700
 expire_timers+0xbb/0x5c0 kernel/time/timer.c:1746
 __run_timers kernel/time/timer.c:2022 [inline]
 __run_timers kernel/time/timer.c:1995 [inline]
 run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
 __do_softirq+0x1fb/0xadc kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x227/0x630 kernel/locking/lockdep.c:5636
Code: 80 9e 7e 83 f8 01 0f 85 3a 03 00 00 9c 58 f6 c4 02 0f 85 25 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000487f8b0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff9200090ff19 RCX: 0000000000000001
RDX: 1ffff11003d70146 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff914c2897
R10: fffffbfff2298512 R11: 1ffffffff216c6e6 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880752d6938 R15: 0000000000000000
 __flush_workqueue+0x118/0x13a0 kernel/workqueue.c:2809
 drain_workqueue+0x1a9/0x3c0 kernel/workqueue.c:2974
 hci_dev_close_sync+0x2f3/0x1200 net/bluetooth/hci_sync.c:4835
 hci_dev_do_close+0x31/0x70 net/bluetooth/hci_core.c:554
 hci_unregister_dev+0x1ce/0x580 net/bluetooth/hci_core.c:2702
 vhci_release+0x80/0xf0 drivers/bluetooth/hci_vhci.c:568
 __fput+0x27c/0xa90 fs/file_table.c:320
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xaa8/0x2950 kernel/exit.c:867
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1012
 __do_sys_exit_group kernel/exit.c:1023 [inline]
 __se_sys_exit_group kernel/exit.c:1021 [inline]
 __ia32_sys_exit_group+0x3e/0x50 kernel/exit.c:1021
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7fd9549
Code: Unable to access opcode bytes at 0xf7fd951f.
RSP: 002b:00000000ffc2aa2c EFLAGS: 00000282 ORIG_RAX: 00000000000000fc
RAX: ffffffffffffffda RBX: 0000000000000043 RCX: 00000000ffc2aa78
RDX: 0000000000000000 RSI: 00000000f735322c RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	80 9e 7e 83 f8 01 0f 	sbbb   $0xf,0x1f8837e(%rsi)
   7:	85 3a                	test   %edi,(%rdx)
   9:	03 00                	add    (%rax),%eax
   b:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  12:	85 25 03 00 00 48    	test   %esp,0x48000003(%rip)        # 0x4800001b
  18:	83 7c 24 08 00       	cmpl   $0x0,0x8(%rsp)
  1d:	74 01                	je     0x20
  1f:	fb                   	sti
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 01 c3             	add    %rax,%rbx <-- trapping instruction
  2d:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  34:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  3b:	00
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24

Crashes (82):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/01/28 09:32 upstream 83abd4d4c4be 9dfcf09c .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in call_timer_fn
2023/01/14 01:20 upstream d9fc1511728c 529798b0 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in call_timer_fn
2022/11/16 06:20 net-next-old 7eba4505394e 3a127a31 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in call_timer_fn
2023/05/22 14:07 upstream 44c026a73be8 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2023/05/20 01:21 upstream cbd6ac3837cd 96689200 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2023/05/17 11:40 upstream f1fcbaa18b28 eaac4681 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2023/05/15 02:44 upstream 838a854820ee 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2023/05/07 08:44 upstream fc4354c6e5c2 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2023/05/04 20:52 upstream 1a5304fecee5 3a560463 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2023/05/04 05:49 upstream 89b7fd5d7f3c b5918830 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in call_timer_fn
2023/04/27 00:02 upstream 0cfd8703e7da 19a3dabe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2023/04/10 23:52 upstream 0d3eb744aed4 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in call_timer_fn
2023/04/07 00:09 upstream f2afccfefe7b 00ce4c67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2023/04/04 08:35 upstream 148341f0a2f5 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2023/03/31 08:15 upstream 62bad54b26db f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2023/03/29 05:55 upstream fcd476ea6a88 fc067f05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2023/03/26 16:08 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in call_timer_fn
2023/02/28 01:41 upstream 982818426a0f e792ae78 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2023/02/25 08:08 upstream a93e884edf61 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in call_timer_fn
2023/02/04 09:30 upstream 0136d86b7852 1b2f701a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2023/01/24 03:04 upstream 7bf70dbb1882 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2023/01/19 12:35 upstream 7287904c8771 1b826a2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in call_timer_fn
2023/01/17 06:42 upstream d532dd102151 a63719e7 .config console log report info ci-qemu-upstream WARNING in call_timer_fn
2023/01/11 07:18 upstream 7dd4b804e080 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in call_timer_fn
2023/01/08 00:26 upstream 0a71553536d2 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2022/11/24 23:39 upstream c3eb11fbb826 62e26685 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2023/04/12 08:37 upstream e62252bc55b6 1a1596b6 .config console log report info ci-qemu-upstream-386 WARNING in call_timer_fn
2023/05/26 12:12 net ad42a35bdfc6 b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in call_timer_fn
2023/05/21 08:07 bpf 0613d8ca9ab3 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/30 14:37 bpf 415d7a49cd79 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/23 22:09 bpf f52cc627b832 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/23 00:43 bpf f52cc627b832 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/22 10:26 bpf f52cc627b832 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/22 00:09 bpf f52cc627b832 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/16 23:44 bpf c730fce7c70c ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/16 15:27 bpf c730fce7c70c ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/15 10:59 bpf c730fce7c70c ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/09 13:56 bpf 919e659ed125 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/09 09:42 bpf 919e659ed125 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/04/08 21:38 bpf 919e659ed125 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/01/28 12:57 bpf 5416c9aea832 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/01/23 07:02 bpf 74bc3a5acc82 44388686 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2022/11/29 21:29 bpf e493bec343fa 05dc7993 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2023/05/29 05:41 bpf-next 4266f41feaee cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/05/09 06:26 net-next ed23734c23d2 f4168103 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in call_timer_fn
2023/05/01 21:28 bpf-next c39028b333f3 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/04/26 06:59 bpf-next 4774ad841bef 7560799c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/04/22 18:12 net-next fbc1449d385d 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in call_timer_fn
2023/04/22 04:32 bpf-next acf1c3d68e9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/04/21 04:31 bpf-next 4b7ef71ac977 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/03/24 22:24 bpf-next 55fbae05476d 9700afae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/02/10 08:09 bpf-next 06744f24696e 07980f9d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/01/25 19:31 bpf-next b613d335a743 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/01/17 20:39 bpf-next c1177979af9c aedf5331 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/01/12 10:28 bpf-next db473df28906 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2022/11/19 11:04 bpf-next ee748cd95e3a 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2023/05/17 04:26 linux-next 715abedee4cd 11c89444 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in call_timer_fn
2023/05/16 06:04 linux-next 715abedee4cd 71b00cfb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in call_timer_fn
2023/04/29 09:46 linux-next 92e815cf07ed 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in call_timer_fn
2023/01/23 22:40 linux-next 691781f561e9 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in call_timer_fn
2022/11/21 22:51 linux-next 15f3bff12cf6 1c576c23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in call_timer_fn
* Struck through repros no longer work on HEAD.