rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=019/1/0x4000000000000000 softirq=181806/181807 fqs=4993
(t=10500 jiffies g=323357 q=30661)
NMI backtrace for cpu 1
CPU: 1 PID: 1280 Comm: syz-executor.5 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 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
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:unwind_next_frame+0x53/0x1ce0 arch/x86/kernel/unwind_orc.c:420
Code: 5c 24 40 48 c7 44 24 48 d9 45 16 8b 48 c1 eb 03 48 c7 44 24 50 20 1a 34 81 48 8d 14 03 c7 02 f1 f1 f1 f1 c7 42 04 00 f3 f3 f3 <48> 89 fa 65 48 8b 34 25 28 00 00 00 48 89 b4 24 98 00 00 00 31 f6
RSP: 0018:ffffc900164d7598 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: 1ffff92002c9aebb RCX: 0000000000000000
RDX: fffff52002c9aebb RSI: ffffffff81e338d7 RDI: ffffc900164d7670
RBP: ffffc900164d76f8 R08: ffffffff8df76ee4 R09: 0000000000000001
R10: fffff52002c9aed9 R11: 000000000008608a R12: ffffc900164d7728
R13: 0000000000000000 R14: ffffc900164d7670 R15: ffff888099e37200
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc mm/kasan/common.c:513 [inline]
____kasan_kmalloc mm/kasan/common.c:472 [inline]
__kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:522
kmalloc include/linux/slab.h:590 [inline]
io_add_buffers fs/io_uring.c:4405 [inline]
io_provide_buffers fs/io_uring.c:4439 [inline]
io_issue_sqe+0x2887/0x7010 fs/io_uring.c:6705
__io_queue_sqe fs/io_uring.c:6974 [inline]
io_queue_sqe fs/io_uring.c:7016 [inline]
io_submit_sqe fs/io_uring.c:7219 [inline]
io_submit_sqes+0x1bca/0x8a20 fs/io_uring.c:7325
__do_sys_io_uring_enter+0xf6e/0x1f50 fs/io_uring.c:10039
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: 0033:0x7f8aa6df6ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8aa436c188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f8aa6f09f60 RCX: 00007f8aa6df6ae9
RDX: 0000000000000000 RSI: 00000000000002ff RDI: 0000000000000003
RBP: 00007f8aa6e50f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8aa743db2f R14: 00007f8aa436c300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 5c pop %rsp
1: 24 40 and $0x40,%al
3: 48 c7 44 24 48 d9 45 movq $0xffffffff8b1645d9,0x48(%rsp)
a: 16 8b
c: 48 c1 eb 03 shr $0x3,%rbx
10: 48 c7 44 24 50 20 1a movq $0xffffffff81341a20,0x50(%rsp)
17: 34 81
19: 48 8d 14 03 lea (%rbx,%rax,1),%rdx
1d: c7 02 f1 f1 f1 f1 movl $0xf1f1f1f1,(%rdx)
23: c7 42 04 00 f3 f3 f3 movl $0xf3f3f300,0x4(%rdx)
* 2a: 48 89 fa mov %rdi,%rdx <-- trapping instruction
2d: 65 48 8b 34 25 28 00 mov %gs:0x28,%rsi
34: 00 00
36: 48 89 b4 24 98 00 00 mov %rsi,0x98(%rsp)
3d: 00
3e: 31 f6 xor %esi,%esi