INFO: task syz-executor.0:1503 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27896 pid: 1503 ppid: 6505 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9850
io_uring_files_cancel include/linux/io_uring.h:16 [inline]
do_exit+0x60c/0x2b40 kernel/exit.c:787
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x21d0 kernel/signal.c:2820
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3807597ae9
RSP: 002b:00007f3804b0d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f38076aaf68 RCX: 00007f3807597ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f38076aaf68
RBP: 00007f38076aaf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38076aaf6c
R13: 00007ffff068586f R14: 00007f3804b0d300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b980ea0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6461
1 lock held by systemd-journal/2939:
1 lock held by in:imklog/6185:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd 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_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1015 Comm: kworker/u4:5 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x0/0x180 mm/kasan/generic.c:189
Code: 43 08 5b 5d c3 48 8b 50 08 48 c7 c6 90 12 17 8b 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 89 c7 e8 a7 cc ec ff 0f 0b 0f 1f 44 00 00 <48> 85 f6 0f 84 3c 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55
RSP: 0018:ffffc900043e7ab0 EFLAGS: 00000246
RAX: 0000000000000026 RBX: dffffc0000000000 RCX: ffffffff812ae2d0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff81bcc327
RBP: ffffffff81bcc327 R08: 0000000000000005 R09: ffffffff8d6f8fc7
R10: ffffffff8198d850 R11: 000000000000003f R12: 0000000000000004
R13: ffffc900043e7b61 R14: 0000000000000005 R15: ffffffff8ef29320
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58ffcb6000 CR3: 000000000b68e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy+0x20/0x60 mm/kasan/shadow.c:65
memcpy include/linux/fortify-string.h:225 [inline]
text_poke_bp_batch+0x2b0/0x560 arch/x86/kernel/alternative.c:1307
text_poke_flush arch/x86/kernel/alternative.c:1451 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1448 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1458
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1d5/0x430 kernel/jump_label.c:830
static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate mm/kfence/core.c:746 [inline]
toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:724
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 43 08 5b 5d rex.XB or %bl,0x5d(%r11)
4: c3 retq
5: 48 8b 50 08 mov 0x8(%rax),%rdx
9: 48 c7 c6 90 12 17 8b mov $0xffffffff8b171290,%rsi
10: 48 8d 4a ff lea -0x1(%rdx),%rcx
14: 83 e2 01 and $0x1,%edx
17: 48 0f 45 c1 cmovne %rcx,%rax
1b: 48 89 c7 mov %rax,%rdi
1e: e8 a7 cc ec ff callq 0xffecccca
23: 0f 0b ud2
25: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
* 2a: 48 85 f6 test %rsi,%rsi <-- trapping instruction
2d: 0f 84 3c 01 00 00 je 0x16f
33: 49 89 f9 mov %rdi,%r9
36: 41 54 push %r12
38: 44 0f b6 c2 movzbl %dl,%r8d
3c: 49 01 f1 add %rsi,%r9
3f: 55 push %rbp