syzbot

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (1 GPs behind) idle=fa5/1/0x4000000000000000 softirq=111581/111582 fqs=5247 
	(detected by 0, t=10502 jiffies, g=178181, q=539)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 13672 Comm: syz-executor.2 Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_release kernel/locking/lockdep.c:5297 [inline]
RIP: 0010:lock_release+0x19f/0x720 kernel/locking/lockdep.c:5659
Code: 00 83 c3 03 65 ff 05 00 25 a5 7e 0f b6 04 02 65 4c 8b 3c 25 00 70 02 00 38 c3 7c 08 84 c0 0f 85 de 04 00 00 8b 05 cd a4 37 0c <85> c0 0f 84 08 02 00 00 4d 8d b7 58 0a 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90000dc0d08 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000007 RCX: 0000000000000001
RDX: 1ffffffff1b29f3d RSI: 0000000000010001 RDI: 0000000000000000
RBP: 1ffff920001b81a3 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8bb83c20
R13: 17d0ccb1afa19963 R14: ffff888017d43a00 R15: ffff888017d43a00
FS:  00007ff4826f1700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e023000 CR3: 000000007880b000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 rcu_lock_release include/linux/rcupdate.h:273 [inline]
 rcu_read_unlock include/linux/rcupdate.h:727 [inline]
 advance_sched+0x507/0x9a0 net/sched/sch_taprio.c:769
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5607
Code: 1d a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000276f850 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920004edf0c RCX: 000000000000dab9
RDX: 1ffff11002fa888b RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8ffd3a5f
R10: fffffbfff1ffa74b R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880455383d8 R15: 0000000000000000
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 io_try_cancel_userdata+0x21c/0x410 fs/io_uring.c:6396
 io_async_cancel fs/io_uring.c:6432 [inline]
 io_issue_sqe+0x36c3/0x72e0 fs/io_uring.c:6795
 __io_queue_sqe fs/io_uring.c:7098 [inline]
 io_queue_sqe fs/io_uring.c:7140 [inline]
 io_submit_sqe fs/io_uring.c:7348 [inline]
 io_submit_sqes+0x11df/0x8f20 fs/io_uring.c:7454
 __do_sys_io_uring_enter+0xf6e/0x1f50 fs/io_uring.c:10154
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff483d7c059
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff4826f1168 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007ff483e8ef60 RCX: 00007ff483d7c059
RDX: 0000000000000000 RSI: 000000000000688c RDI: 0000000000000003
RBP: 00007ff483dd608d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc7660fb1f R14: 00007ff4826f1300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 83 c3 03 65 ff    	add    %al,-0x9afc3d(%rbx)
   6:	05 00 25 a5 7e       	add    $0x7ea52500,%eax
   b:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
   f:	65 4c 8b 3c 25 00 70 	mov    %gs:0x27000,%r15
  16:	02 00
  18:	38 c3                	cmp    %al,%bl
  1a:	7c 08                	jl     0x24
  1c:	84 c0                	test   %al,%al
  1e:	0f 85 de 04 00 00    	jne    0x502
  24:	8b 05 cd a4 37 0c    	mov    0xc37a4cd(%rip),%eax        # 0xc37a4f7
* 2a:	85 c0                	test   %eax,%eax <-- trapping instruction
  2c:	0f 84 08 02 00 00    	je     0x23a
  32:	4d 8d b7 58 0a 00 00 	lea    0xa58(%r15),%r14
  39:	48                   	rex.W
  3a:	b8 00 00 00 00       	mov    $0x0,%eax