syzbot


BUG: unable to handle kernel paging request in wait_consider_task (2)

Status: auto-closed as invalid on 2021/08/30 22:57
Reported-by: syzbot+9766a9c7ec0e96585441@syzkaller.appspotmail.com
First crash: 422d, last: 422d
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: unable to handle kernel paging request in wait_consider_task 21 675d 903d 0/1 auto-closed as invalid on 2020/12/21 09:51
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
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:
audit: type=1326 audit(1619996163.153:2744): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=2086 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x0
BUG: unable to handle kernel paging request at ffff8880004547bc
IP: wait_consider_task+0x96/0x3350 kernel/exit.c:1339
PGD c9cc067 P4D c9cc067 PUD c9cd067 PMD 10e063 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 31479 Comm: syz-executor.2 Not tainted 4.14.232-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888061a246c0 task.stack: ffff888082868000
RIP: 0010:wait_consider_task+0x96/0x3350 kernel/exit.c:1339
RSP: 0018:ffff88808286fb40 EFLAGS: 00010246
RAX: 0000000000000007 RBX: ffff888000454340 RCX: 0000000000001872
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88808286fd18
RBP: dffffc0000000000 R08: ffffffff8b99be50 R09: 000000000006008a
R10: ffff888061a24f48 R11: ffff888061a246c0 R12: ffff88808286fd18
R13: ffff888061a246c0 R14: ffff88808286fd18 R15: ffff8880004547bc
FS:  00000000032e3400(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880004547bc CR3: 00000000471c3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_wait_thread kernel/exit.c:1448 [inline]
 do_wait+0x3e9/0x930 kernel/exit.c:1519
 kernel_wait4+0x107/0x1e0 kernel/exit.c:1661
 SYSC_wait4 kernel/exit.c:1673 [inline]
 SyS_wait4+0xfe/0x110 kernel/exit.c:1669
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x464a97
RSP: 002b:00007ffcb7747760 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000005731 RCX: 0000000000464a97
RDX: 0000000040000001 RSI: 00007ffcb77477fc RDI: 00000000ffffffff
RBP: 00007ffcb77477fc R08: 0000000000000000 R09: 000002d451a82cf8
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000029307e R14: 0000000000000008 R15: 00007ffcb7747860
Code: 40 08 00 f3 f3 f3 e8 da b6 23 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 a4 b6 23 
RIP: wait_consider_task+0x96/0x3350 kernel/exit.c:1339 RSP: ffff88808286fb40
CR2: ffff8880004547bc
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8131a470>] do_wait+0x300/0x930 kernel/exit.c:1545
------------[ cut here ]------------
WARNING: CPU: 1 PID: 31479 at kernel/sched/core.c:5984 __might_sleep.cold+0x9f/0xb4 kernel/sched/core.c:5984

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/05/02 22:56 linux-4.14.y 7d7d1c0ab3eb 77e2b668 .config log report info BUG: unable to handle kernel paging request in wait_consider_task