syzbot


general protection fault in expire_timers

Status: auto-closed as invalid on 2021/07/30 19:44
Reported-by: syzbot+4b0f3146b9b7d6e4e345@syzkaller.appspotmail.com
First crash: 1176d, last: 1176d
Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: slab-use-after-free Write in expire_timers mm acpi batman 7 412d 413d 0/27 auto-obsoleted due to no activity on 2023/08/23 09:02
upstream KASAN: use-after-free Write in expire_timers arm 1 578d 577d 0/27 auto-obsoleted due to no activity on 2023/03/20 12:09
upstream KMSAN: uninit-value in expire_timers (2) kernel 2 1180d 1217d 0/27 auto-closed as invalid on 2021/06/26 09:57
upstream KMSAN: uninit-value in expire_timers (3) ext4 1 1082d 1082d 0/27 auto-closed as invalid on 2021/10/02 12:28
android-54 BUG: unable to handle kernel paging request in expire_timers 3 1168d 1260d 0/2 auto-closed as invalid on 2021/08/07 04:23
upstream KMSAN: uninit-value in expire_timers (4) kernel 1 953d 953d 0/27 auto-closed as invalid on 2022/02/08 07:20
android-54 BUG: unable to handle kernel paging request in expire_timers (2) 6 515d 766d 0/2 auto-obsoleted due to no activity on 2023/05/22 09:21

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.108-syzkaller-00854-ga09fa8da7919 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__hlist_del include/linux/list.h:764 [inline]
RIP: 0010:detach_timer kernel/time/timer.c:824 [inline]
RIP: 0010:expire_timers+0x141/0x410 kernel/time/timer.c:1450
Code: c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 38 fc 3d 00 4d 89 3c 24 4d 85 ff 74 2f e8 da 2d 0f 00 49 83 c7 08 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 11 fc 3d 00 4d 89 27 eb 11 66 66 2e
RSP: 0018:ffff8881f6f09d10 EFLAGS: 00010002
RAX: 000000001c6c0034 RBX: dffffc0000000000 RCX: ffff8881f5dc6e40
RDX: 0000000000000102 RSI: 0000000000000004 RDI: ffff8881f6f09c80
RBP: 1ffff1103e770e39 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffed103ede1391 R11: 0000000000000004 R12: ffff8881f6f09e20
R13: 1ffff1103e770e38 R14: ffff8881f3b871c8 R15: 00000000e36001a2
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557195492a90 CR3: 00000001ab1c3000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __run_timers+0x603/0x740 kernel/time/timer.c:1785
 run_timer_softirq+0x46/0x80 kernel/time/timer.c:1798
 __do_softirq+0x23e/0x615 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:537 [inline]
 smp_apic_timer_interrupt+0x113/0x420 arch/x86/kernel/apic/apic.c:1150
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:831
 </IRQ>
RIP: 0010:default_idle+0x1f/0x30 arch/x86/kernel/process.c:573
Code: 90 90 90 90 90 90 90 90 90 90 90 e8 1b ff e5 fd bf 01 00 00 00 89 c6 e8 df cf e3 fc e9 07 00 00 00 0f 00 2d 63 db 60 00 fb f4 <e8> fc fe e5 fd bf ff ff ff ff 89 c6 e9 c0 cf e3 fc 41 57 41 56 53
RSP: 0018:ffff8881f5defd78 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f5dc6e40 RCX: ffff8881f5dc6e40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8881f5defe80 R08: ffffffff822b9070 R09: ffffed103ebb8dc9
R10: ffffed103ebb8dc9 R11: 0000000000000000 R12: ffffffff86472020
R13: 1ffff1103ebb8dc8 R14: dffffc0000000000 R15: 0000000000000001
 default_idle_call kernel/sched/idle.c:94 [inline]
 cpuidle_idle_call kernel/sched/idle.c:154 [inline]
 do_idle+0x229/0x600 kernel/sched/idle.c:264
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:356
 start_secondary+0x359/0x3f0 arch/x86/kernel/smpboot.c:264
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241
Modules linked in:
---[ end trace a6a16f3ec911e769 ]---
RIP: 0010:__hlist_del include/linux/list.h:764 [inline]
RIP: 0010:detach_timer kernel/time/timer.c:824 [inline]
RIP: 0010:expire_timers+0x141/0x410 kernel/time/timer.c:1450
Code: c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 38 fc 3d 00 4d 89 3c 24 4d 85 ff 74 2f e8 da 2d 0f 00 49 83 c7 08 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 11 fc 3d 00 4d 89 27 eb 11 66 66 2e
RSP: 0018:ffff8881f6f09d10 EFLAGS: 00010002
RAX: 000000001c6c0034 RBX: dffffc0000000000 RCX: ffff8881f5dc6e40
RDX: 0000000000000102 RSI: 0000000000000004 RDI: ffff8881f6f09c80
RBP: 1ffff1103e770e39 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffed103ede1391 R11: 0000000000000004 R12: ffff8881f6f09e20
R13: 1ffff1103e770e38 R14: ffff8881f3b871c8 R15: 00000000e36001a2
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557195492a90 CR3: 00000001ab1c3000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/04/01 19:43 android12-5.4 a09fa8da7919 6a81331a .config console log report info ci2-android-5-4-kasan general protection fault in expire_timers
* Struck through repros no longer work on HEAD.