INFO: task syz-executor207:5311 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor207 state:D stack:28888 pid:5311  tgid:5311  ppid:5061   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b4/0x9c0 kernel/locking/mutex.c:752
 bdev_release+0xcd/0xa80 block/bdev.c:967
 blkdev_release+0x37/0x50 block/fops.c:631
 __fput+0x270/0xb70 fs/file_table.c:376
 __fput_sync+0x47/0x50 fs/file_table.c:461
 __do_sys_close fs/open.c:1592 [inline]
 __se_sys_close fs/open.c:1577 [inline]
 __x64_sys_close+0x86/0xf0 fs/open.c:1577
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fe108a8c41a
RSP: 002b:00007fff42dd3f40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe108a8c41a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000006 R08: 0000000000000000 R09: 00007fff42dd3f90
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000001faca
R13: 000000000001fafc R14: 00007fe108b1441c R15: 00007fe108b14400
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf86/0x1210 kernel/hung_task.c:379
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4500 Comm: klogd Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__orc_find+0x10b/0x130 arch/x86/kernel/unwind_orc.c:110
Code: 48 8b 44 24 10 4c 8b 2c 24 48 8b 74 24 08 49 29 c5 49 c1 fd 02 4b 8d 44 6d 00 48 8d 1c 46 e8 ec d8 4d 00 48 89 d8 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 31 db eb e5 48 8b 5c 24 08 eb de
RSP: 0018:ffffc9000316f490 EFLAGS: 00000296
RAX: ffffffff904c2fc4 RBX: ffffffff904c2fc4 RCX: ffffffff813a3a94
RDX: ffff88807d06bb80 RSI: ffffffff813a3ad4 RDI: 0000000000000006
RBP: ffffffff8fa3b9f8 R08: 0000000000000006 R09: ffffffff886f328f
R10: ffffffff886f31bc R11: 0000000000000000 R12: ffffffff886f328f
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8fa3b9f8
FS:  00007f0fb531a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005585db3ec600 CR3: 00000000229fb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
 unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
 kasan_set_track+0x24/0x30 mm/kasan/common.c:61
 unpoison_slab_object mm/kasan/common.c:282 [inline]
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:308
 kasan_slab_alloc include/linux/kasan.h:200 [inline]
 slab_post_alloc_hook mm/slub.c:3817 [inline]
 slab_alloc_node mm/slub.c:3864 [inline]
 kmem_cache_alloc_node+0x177/0x340 mm/slub.c:3907
 __alloc_skb+0x287/0x330 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1298 [inline]
 alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6369
 sock_alloc_send_pskb+0x7e1/0x970 net/core/sock.c:2776
 unix_dgram_sendmsg+0x464/0x1ca0 net/unix/af_unix.c:1974
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0xd5/0x180 net/socket.c:745
 __sys_sendto+0x225/0x310 net/socket.c:2189
 __do_sys_sendto net/socket.c:2201 [inline]
 __se_sys_sendto net/socket.c:2197 [inline]
 __x64_sys_sendto+0xe0/0x1b0 net/socket.c:2197
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f0fb547c9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffea663d508 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0fb547c9b5
RDX: 0000000000000049 RSI: 00005555ec8a1f60 RDI: 0000000000000003
RBP: 00005555ec89d910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f0fb560a212 R14: 00007ffea663d608 R15: 0000000000000000
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.448 msecs