syzbot


WARNING in call_timer_fn

Status: upstream: reported syz repro on 2022/11/16 15:25
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+6fb78d577e89e69602f9@syzkaller.appspotmail.com
First crash: 488d, last: 3h14m
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 (16)
Title Replies (including bot) Last reply
[syzbot] Monthly bluetooth report (Mar 2024) 0 (1) 2024/03/06 22:08
[syzbot] Monthly bluetooth report (Feb 2024) 0 (1) 2024/02/04 13:30
[syzbot] Monthly bluetooth report (Jan 2024) 0 (1) 2024/01/04 11:26
[syzbot] Monthly bluetooth report (Dec 2023) 0 (1) 2023/12/04 12:38
[syzbot] Monthly bluetooth report (Nov 2023) 0 (1) 2023/11/03 10:22
[syzbot] Monthly bluetooth report (Oct 2023) 0 (1) 2023/10/02 12:39
[syzbot] Monthly bluetooth report (Sep 2023) 0 (1) 2023/09/01 08:50
[syzbot] Monthly bluetooth report (Aug 2023) 0 (1) 2023/08/01 12:53
[syzbot] Monthly bluetooth report (Jun 2023) 0 (1) 2023/07/01 10:15
[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 (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in call_timer_fn origin:lts-only C unreliable 11 42d 376d 0/3 upstream: reported C repro on 2023/03/08 12:11
linux-5.15 WARNING in call_timer_fn origin:lts-only syz 1 27d 27d 0/3 upstream: reported syz repro on 2024/02/21 03:34
Last patch testing requests (6)
Created Duration User Patch Repo Result
2023/09/15 06:40 31m retest repro net-next OK log
2023/09/15 06:40 35m retest repro upstream report log
2023/09/15 06:40 32m retest repro upstream report log
2023/09/15 06:40 28m retest repro upstream report log
2023/09/15 06:40 24m retest repro net-next OK log
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: 4511 at kernel/workqueue.c:1728 __queue_work+0xd13/0x1000 kernel/workqueue.c:1727
Modules linked in:
CPU: 0 PID: 4511 Comm: udevd Not tainted 6.8.0-rc6-syzkaller-00194-g17ba56605bfd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:__queue_work+0xd13/0x1000 kernel/workqueue.c:1727
Code: ff e8 31 b2 34 00 eb 21 e8 2a b2 34 00 eb 1a e8 23 b2 34 00 eb 13 e8 1c b2 34 00 90 0f 0b 90 e9 31 fd ff ff e8 0e b2 34 00 90 <0f> 0b 90 48 83 c4 70 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90000007b18 EFLAGS: 00010046
RAX: ffffffff815eba1f RBX: 0000000000000100 RCX: ffff8880676e8000
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815eae1d R09: 1ffffffff1f087fd
R10: dffffc0000000000 R11: ffffffff815ec1c0 R12: dffffc0000000000
R13: ffff88802c8acc10 R14: ffff88802d2e1000 R15: 0000000000000008
FS:  00007f6b9d97ac80(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a195071950 CR3: 000000002c730000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x600 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1746 [inline]
 __run_timers+0x64d/0x830 kernel/time/timer.c:2038
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2051
 __do_softirq+0x2bb/0x942 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x25a/0x530 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 c4 24 81 00 f6 44 24 61 02 0f 85 8e 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900031b7cc0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000636fa4 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8baac7e0 RDI: ffffffff8bfd9a20
RBP: ffffc900031b7e18 R08: ffffffff92c58437 R09: 1ffffffff258b086
R10: dffffc0000000000 R11: fffffbfff258b087 R12: 1ffff92000636fa0
R13: dffffc0000000000 R14: ffffc900031b7d20 R15: 0000000000000246
 fs_reclaim_acquire+0xae/0x130 mm/page_alloc.c:3709
 might_alloc include/linux/sched/mm.h:303 [inline]
 slab_pre_alloc_hook mm/slub.c:3761 [inline]
 slab_alloc_node mm/slub.c:3842 [inline]
 kmem_cache_alloc+0x48/0x340 mm/slub.c:3867
 getname_flags+0xbc/0x4f0 fs/namei.c:140
 getname fs/namei.c:219 [inline]
 __do_sys_unlink fs/namei.c:4450 [inline]
 __se_sys_unlink fs/namei.c:4448 [inline]
 __x64_sys_unlink+0x3c/0x60 fs/namei.c:4448
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f6b9d517da7
Code: f0 ff ff 73 01 c3 48 8b 0d 7e 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 90 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffdf5c2ecb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00005601c08281af RCX: 00007f6b9d517da7
RDX: 00007f6b9d5f1b00 RSI: 00005601c17f8010 RDI: 00005601c08280d8
RBP: 00005601c1802a80 R08: 0000000000000007 R09: 8e5abc776de530b5
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000000000bb8
R13: 00005601c1819e10 R14: 00005601c181d550 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	2b 00                	sub    (%rax),%eax
   2:	74 08                	je     0xc
   4:	4c 89 f7             	mov    %r14,%rdi
   7:	e8 c4 24 81 00       	call   0x8124d0
   c:	f6 44 24 61 02       	testb  $0x2,0x61(%rsp)
  11:	0f 85 8e 01 00 00    	jne    0x1a5
  17:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  1e:	74 01                	je     0x21
  20:	fb                   	sti
  21:	48 c7 44 24 40 0e 36 	movq   $0x45e0360e,0x40(%rsp)
  28:	e0 45
* 2a:	4b c7 44 25 00 00 00 	movq   $0x0,0x0(%r13,%r12,1) <-- trapping instruction
  31:	00 00
  33:	43 c7 44 25 09 00 00 	movl   $0x0,0x9(%r13,%r12,1)
  3a:	00 00
  3c:	43                   	rex.XB
  3d:	c7                   	.byte 0xc7
  3e:	44                   	rex.R
  3f:	25                   	.byte 0x25

Crashes (1908):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/02 14:11 upstream 17ba56605bfd 25905f5d .config console log report syz [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in call_timer_fn
2024/01/28 11:32 upstream 8a696a29c690 cc4a4020 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in call_timer_fn
2023/08/09 00:52 upstream 14f9643dc90a 3c27dfcd .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in call_timer_fn
2023/12/04 17:07 upstream 33cc938e65a9 f819d6f7 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in call_timer_fn
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
2024/02/24 12:41 upstream 603c04e27c3e 8d446f15 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in call_timer_fn
2023/12/11 21:58 upstream a39b6ac3781d 28b24332 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in call_timer_fn
2023/09/19 03:13 upstream 2cf0f7156238 0b6a67ac .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in call_timer_fn
2024/03/07 15:53 upstream 67be068d31d4 2b789849 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in call_timer_fn
2023/07/10 11:38 net-next 6843306689af 668cb1fa .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce 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
2024/03/11 21:42 upstream e8f897f4afef 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in call_timer_fn
2024/03/01 13:11 upstream 87adedeba51a 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in call_timer_fn
2024/01/24 21:10 upstream 615d30064886 1e153dc8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in call_timer_fn
2023/12/15 03:07 upstream c7402612e2e6 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in call_timer_fn
2024/03/14 08:31 upstream e5e038b7ae9d 8d8ee116 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in call_timer_fn
2024/01/30 05:19 bpf 577e4432f3ac 991a98f4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce WARNING in call_timer_fn
2024/01/21 05:09 net dbc153fd3c14 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in call_timer_fn
2024/03/19 00:33 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 23:25 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 22:22 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 22:10 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 20:38 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 19:30 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 16:40 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 15:32 net-next 237bb5f7f7f5 baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 12:18 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 11:10 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 09:39 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 09:00 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 07:41 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 06:38 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 05:37 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 04:32 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 02:28 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/18 00:07 bpf-next 4c8644f86c85 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce WARNING in call_timer_fn
2024/03/17 22:50 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 21:40 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 21:12 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 20:11 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 19:03 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 17:52 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 16:39 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 16:38 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 15:32 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 14:12 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 12:50 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 11:04 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 09:46 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 06:09 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 05:05 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 04:48 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 03:24 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 02:20 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/17 00:24 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 23:17 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 22:00 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 19:21 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 18:13 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 18:00 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 16:35 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 15:33 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/03/16 14:02 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-net-next-test-gce WARNING in call_timer_fn
2024/01/06 19:03 net-next 948f97f9d8d2 d0304e9c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in call_timer_fn
2024/02/03 23:27 linux-next 076d56d74f17 a67b2c42 .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.