INFO: task syz-executor.3:17858 blocked for more than 143 seconds.
      Not tainted 6.6.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:26544 pid:17858 ppid:5411   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x18bd/0x4910 kernel/sched/core.c:6695
 schedule+0xbf/0x180 kernel/sched/core.c:6771
 perf_event_free_task+0x4db/0x5c0 kernel/events/core.c:13161
 copy_process+0x2dac/0x4280 kernel/fork.c:2778
 kernel_clone+0x219/0x800 kernel/fork.c:2909
 __do_sys_clone kernel/fork.c:3052 [inline]
 __se_sys_clone kernel/fork.c:3036 [inline]
 __x64_sys_clone+0x254/0x2a0 kernel/fork.c:3036
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f085a47cae9
RSP: 002b:00007f085b20b078 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f085a59bf80 RCX: 00007f085a47cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000d816e480
RBP: 00007f085a4c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 000000000000000b R14: 00007f085a59bf80 R15: 00007ffe1c541a98
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x494/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x194/0x2f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xded/0xe30 kernel/hung_task.c:379
 kthread+0x2b0/0x340 kernel/kthread.c:388
 ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 29879 Comm: syz-executor.1 Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:206 [inline]
RIP: 0010:unwind_next_frame+0x1ad/0x2b40 arch/x86/kernel/unwind_orc.c:494
Code: ff e8 87 4e 4f 00 49 ff cd 4c 89 64 24 78 48 89 6c 24 30 0f 84 49 01 00 00 48 c7 c3 00 00 00 81 4c 89 ef 48 c7 c6 00 00 00 81 <e8> 5e 4c 4f 00 49 c7 c6 00 00 00 8b 4c 89 ef 48 c7 c6 00 00 00 8b
RSP: 0018:ffffc900055c7220 EFLAGS: 00000283
RAX: 0000000000000000 RBX: ffffffff81000000 RCX: ffff88801c2a1dc0
RDX: ffffc900055c7395 RSI: ffffffff81000000 RDI: ffffffff813dbd07
RBP: ffffc900055c73b0 R08: ffffffff813d8b29 R09: 0000000000000000
R10: ffffc900055c7360 R11: fffff52000ab8e78 R12: ffffffff813dbd08
R13: ffffffff813dbd07 R14: dffffc0000000000 R15: 1ffff92000ab8e6c
FS:  0000555556e55480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75008ffbc1 CR3: 00000000202cd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __unwind_start+0x63d/0x7a0 arch/x86/kernel/unwind_orc.c:760
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xf9/0x190 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x24/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook mm/slub.c:1826 [inline]
 slab_free mm/slub.c:3809 [inline]
 __kmem_cache_free+0x257/0x3a0 mm/slub.c:3822
 do_delayed_call include/linux/delayed_call.h:28 [inline]
 put_link fs/namei.c:1025 [inline]
 walk_component+0x171/0x400 fs/namei.c:2006
 link_path_walk+0x711/0xe70 fs/namei.c:2325
 path_openat+0x245/0x3180 fs/namei.c:3792
 do_filp_open+0x230/0x480 fs/namei.c:3823
 do_sys_openat2+0x13a/0x1c0 fs/open.c:1422
 do_sys_open fs/open.c:1437 [inline]
 __do_sys_openat fs/open.c:1453 [inline]
 __se_sys_openat fs/open.c:1448 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1448
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f750087b6e0
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 09 82 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 5c 82 02 00 8b 44
RSP: 002b:00007ffe770587e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f750087b6e0
RDX: 0000000000080001 RSI: 00007f75008c8502 RDI: 00000000ffffff9c
RBP: 00007f75008c8502 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004
R13: 00007ffe77058880 R14: 0000000000000001 R15: 0000000000000000
 </TASK>