syzbot


general protection fault in rcu_cblist_dequeue

Status: auto-closed as invalid on 2021/05/02 15:07
Reported-by: syzbot+7300abc01ac027da81fb@syzkaller.appspotmail.com
First crash: 543d, last: 543d

Sample crash report:
hid-generic 0000:0000:0000.0002: unknown main item tag 0x0
hid-generic 0000:0000:0000.0002: unknown main item tag 0x0
hid-generic 0000:0000:0000.0002: hidraw0: <UNKNOWN> HID v0.00 Device [syz0] on syz1
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
Modules linked in:
CPU: 1 PID: 18 Comm: kworker/1:0 Not tainted 4.14.213-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_power_efficient srcu_invoke_callbacks
task: ffff8880b54aa4c0 task.stack: ffff8880b54b0000
RIP: 0010:rcu_cblist_dequeue+0x5c/0xe0 kernel/rcu/rcu_segcblist.c:53
RSP: 0018:ffff8880b54b7ca0 EFLAGS: 00010a06
RAX: ff8880574b7c8000 RBX: ffff8880b54b7cf0 RCX: 1ff1100ae96f9000
RDX: dffffc0000000000 RSI: ffff8880b54aad70 RDI: ffff8880b54b7d00
RBP: ffff8880b54b7cf0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffe8ffffd990b8
R13: ffffe8ffffd99080 R14: ffff8880495ca280 R15: ffff8880ba52e800
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f16a8a000 CR3: 00000000abb9f000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 srcu_invoke_callbacks+0x1e7/0x2f0 kernel/rcu/srcutree.c:1157
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 11 00 75 64 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 83 6b 10 01 48 c1 e9 03 <80> 3c 11 00 75 36 48 8b 10 48 85 d2 48 89 13 74 06 48 83 c4 08 
RIP: rcu_cblist_dequeue+0x5c/0xe0 kernel/rcu/rcu_segcblist.c:53 RSP: ffff8880b54b7ca0
---[ end trace 8ab4116ac25097c4 ]---

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/01/02 15:06 linux-4.14.y 1752938529c6 79264ae3 .config log report info