syzbot


BUG: unable to handle kernel paging request in wait_consider_task

Status: auto-closed as invalid on 2020/12/21 09:51
Reported-by: syzbot+dc49a553cc0466ae3306@syzkaller.appspotmail.com
First crash: 903d, last: 675d
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel paging request in wait_consider_task (2) 20 590d 639d 0/22 auto-closed as invalid on 2021/03/16 11:24
linux-4.19 BUG: unable to handle kernel paging request in wait_consider_task (2) 2 353d 392d 0/1 auto-closed as invalid on 2021/11/08 02:07
linux-4.19 BUG: unable to handle kernel paging request in wait_consider_task (3) 1 182d 182d 0/1 auto-closed as invalid on 2022/04/28 14:50
linux-4.19 BUG: unable to handle kernel paging request in wait_consider_task 14 573d 808d 0/1 auto-closed as invalid on 2021/04/02 04:29
upstream BUG: unable to handle kernel paging request in wait_consider_task 1 1033d 1029d 0/22 auto-closed as invalid on 2019/11/28 20:23
linux-4.14 BUG: unable to handle kernel paging request in wait_consider_task (2) 1 422d 422d 0/1 auto-closed as invalid on 2021/08/30 22:57
upstream BUG: unable to handle kernel paging request in wait_consider_task (3) 4 207d 333d 0/22 auto-closed as invalid on 2022/03/03 21:46

Sample crash report:
BUG: unable to handle kernel paging request at ffff8880009804fc
IP: wait_consider_task+0x96/0x3350 kernel/exit.c:1336
PGD b08a067 P4D b08a067 PUD b08b067 PMD 913063 PTE 8000000000000000
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 6384 Comm: syz-executor.2 Not tainted 4.14.194-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805ada6580 task.stack: ffff88805ada8000
RIP: 0010:wait_consider_task+0x96/0x3350 kernel/exit.c:1336
RSP: 0018:ffff88805adafb40 EFLAGS: 00010246
RAX: 0000000000000007 RBX: ffff888000980080 RCX: 0000000000000ec1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805adafd18
RBP: dffffc0000000000 R08: ffffffff8a080f88 R09: 000000000006008f
R10: ffff88805ada6e08 R11: ffff88805ada6580 R12: ffff88805adafd18
R13: ffff88805ada6580 R14: ffff88805adafd18 R15: ffff8880009804fc
FS:  0000000001a30940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880009804fc CR3: 000000005acc3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_wait_thread kernel/exit.c:1445 [inline]
 do_wait+0x3e9/0x930 kernel/exit.c:1516
 kernel_wait4+0x107/0x1e0 kernel/exit.c:1658
 SYSC_wait4 kernel/exit.c:1670 [inline]
 SyS_wait4+0xfe/0x110 kernel/exit.c:1666
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x41711b
RSP: 002b:00007fffb05ffb20 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000041711b
RDX: 0000000040000001 RSI: 00007fffb05ffb80 RDI: ffffffffffffffff
RBP: 00007fffb05ffb80 R08: 0000000000000000 R09: 0000000001a30940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000040000001
R13: 00007fffb05ffb80 R14: 000000000013651f R15: 00007fffb05ffb90
Code: 40 08 00 f3 f3 f3 e8 fa c1 24 00 4c 89 f8 48 c1 e8 03 0f b6 14 28 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d1 17 00 00 <44> 8b a3 7c 04 00 00 41 83 fc 10 0f 84 a1 00 00 00 e8 c4 c1 24 
RIP: wait_consider_task+0x96/0x3350 kernel/exit.c:1336 RSP: ffff88805adafb40
CR2: ffff8880009804fc
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff81370af0>] do_wait+0x300/0x930 kernel/exit.c:1542
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6384 at kernel/sched/core.c:5988 __might_sleep.cold+0x9f/0xb4 kernel/sched/core.c:5988

Crashes (21):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/08/23 09:50 linux-4.14.y 6a24ca2506d6 1da71ab0 .config log report
ci2-linux-4-14 2020/07/27 07:11 linux-4.14.y 69b94dd6dcd1 cb93dc6a .config log report
ci2-linux-4-14 2020/07/27 06:08 linux-4.14.y 69b94dd6dcd1 cb93dc6a .config log report
ci2-linux-4-14 2020/07/25 03:32 linux-4.14.y 69b94dd6dcd1 0a13649c .config log report
ci2-linux-4-14 2020/07/05 14:36 linux-4.14.y b850307b279c 22f87567 .config log report
ci2-linux-4-14 2020/07/05 07:46 linux-4.14.y b850307b279c 24d7f505 .config log report
ci2-linux-4-14 2020/07/02 21:48 linux-4.14.y b850307b279c f30c14bf .config log report
ci2-linux-4-14 2020/06/25 17:16 linux-4.14.y b850307b279c c7b4497a .config log report
ci2-linux-4-14 2020/06/19 11:00 linux-4.14.y b850307b279c bc258b50 .config log report
ci2-linux-4-14 2020/06/17 09:30 linux-4.14.y b850307b279c b9f3810b .config log report
ci2-linux-4-14 2020/06/15 02:48 linux-4.14.y b850307b279c 2a22c77a .config log report
ci2-linux-4-14 2020/06/10 02:31 linux-4.14.y c6db52a88798 860c4de9 .config log report
ci2-linux-4-14 2020/05/27 08:31 linux-4.14.y a41ba30d9df2 9072c126 .config log report
ci2-linux-4-14 2020/05/25 01:12 linux-4.14.y a41ba30d9df2 11284182 .config log report
ci2-linux-4-14 2020/05/24 12:46 linux-4.14.y a41ba30d9df2 ce7ca010 .config log report
ci2-linux-4-14 2020/05/19 06:35 linux-4.14.y ab9dfda23248 684d3606 .config log report
ci2-linux-4-14 2020/05/10 01:53 linux-4.14.y d71f695ce745 88cb3e92 .config log report
ci2-linux-4-14 2020/05/04 04:00 linux-4.14.y 773e2b1cd56a 58ae5e18 .config log report
ci2-linux-4-14 2020/04/07 13:17 linux-4.14.y 4520f06b03ae 99a96044 .config log report
ci2-linux-4-14 2020/02/09 10:20 linux-4.14.y e0f8b8a65a47 6ece2ea5 .config log report
ci2-linux-4-14 2020/01/08 13:07 linux-4.14.y 84f5ad468100 ddc3e859 .config log report