syzbot


WARNING in timerqueue_del

Status: closed as invalid on 2020/07/02 01:51
Subsystems: kernel
[Documentation on labels]
First crash: 1469d, last: 1463d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in timerqueue_del (2) kernel 1 981d 977d 0/26 auto-closed as invalid on 2021/12/17 02:42

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 19089 at lib/timerqueue.c:65 timerqueue_del+0xff/0x150 lib/timerqueue.c:65
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 19089 Comm: syz-executor.0 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 fixup_bug arch/x86/kernel/traps.c:170 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:timerqueue_del+0xff/0x150 lib/timerqueue.c:65
Code: e8 86 5c ff ff 4c 89 e1 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 11 00 75 43 48 89 45 08 e9 75 ff ff ff e8 71 59 c5 fd <0f> 0b e9 3f ff ff ff 48 89 df e8 d2 21 03 fe eb 86 48 89 df e8 48
RSP: 0018:ffffc90001847b00 EFLAGS: 00010012
RAX: 0000000000040000 RBX: ffffe8ffffc81900 RCX: ffffc9000233a000
RDX: 00000000000192cf RSI: ffffffff83adda7f RDI: 0000000000000006
RBP: ffff8880ae7297c8 R08: ffff88808eb38200 R09: ffffed1015ce7104
R10: ffff8880ae73881b R11: ffffed1015ce7103 R12: ffffe8ffffc81900
R13: 0000000000000001 R14: ffff8880ae729700 R15: 0000000000000000
 __remove_hrtimer+0xc8/0x1e0 kernel/time/hrtimer.c:997
 remove_hrtimer kernel/time/hrtimer.c:1037 [inline]
 hrtimer_try_to_cancel kernel/time/hrtimer.c:1169 [inline]
 hrtimer_try_to_cancel+0x287/0x5b0 kernel/time/hrtimer.c:1151
 hrtimer_cancel+0x13/0x40 kernel/time/hrtimer.c:1278
 napi_disable+0xbe/0xe0 net/core/dev.c:6520
 gro_cells_destroy net/core/gro_cells.c:101 [inline]
 gro_cells_destroy+0x117/0x390 net/core/gro_cells.c:92
 ip6_dev_free+0x15/0x60 net/ipv6/ip6_tunnel.c:269
 netdev_run_todo+0x449/0x760 net/core/dev.c:9657
 dev_ioctl+0x287/0xc60 net/core/dev_ioctl.c:522
 sock_ioctl+0x5d1/0x790 net/socket.c:1118
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl+0x11a/0x180 fs/ioctl.c:763
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl fs/ioctl.c:770 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:770
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c829
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2565a9dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004e90c0 RCX: 000000000045c829
RDX: 0000000020000000 RSI: 00000000000089f2 RDI: 0000000000000006
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000418 R14: 00000000004d37c0 R15: 00007f2565a9e6d4

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Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/04/23 17:40 bpf 257d7d4f0e69 2e44d63e .config console log report ci-upstream-bpf-kasan-gce
2020/04/17 11:28 bpf edadedf1c5b4 18397578 .config console log report ci-upstream-bpf-kasan-gce
* Struck through repros no longer work on HEAD.