INFO: task syz-executor.4:16787 blocked for more than 143 seconds.
      Not tainted 6.6.0-rc1-next-20230911-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:27136 pid:16787 ppid:10841  flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6695
 schedule+0xe7/0x1b0 kernel/sched/core.c:6771
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
 blkdev_put+0xb0/0x8e0 block/bdev.c:884
 blkdev_release+0x82/0xa0 block/fops.c:604
 __fput+0x3f7/0xa70 fs/file_table.c:384
 __fput_sync+0x47/0x50 fs/file_table.c:465
 __do_sys_close fs/open.c:1572 [inline]
 __se_sys_close fs/open.c:1557 [inline]
 __x64_sys_close+0x87/0xf0 fs/open.c:1557
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0f18c7b9da
RSP: 002b:00007ffe6267b990 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f0f18c7b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f0f18d9d980 R08: 0000001b31a20000 R09: 0000000000000226
R10: 000000008a4141e5 R11: 0000000000000293 R12: 00000000001423c3
R13: ffffffffffffffff R14: 00007f0f18800000 R15: 0000000000142082
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc1-next-20230911-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+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 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+0xfac/0x1230 kernel/hung_task.c:379
 kthread+0x33a/0x430 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:304
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4484 Comm: klogd Not tainted 6.6.0-rc1-next-20230911-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:vsnprintf+0x28c/0x1870 lib/vsprintf.c:2808
Code: 00 00 00 00 fc ff df 48 89 ea 41 8b 1f 48 c1 ea 03 0f b6 04 02 48 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 dd 14 00 00 88 5d 00 <e8> df 1f 55 f7 45 8d 7d ff 0f b6 44 24 50 31 ff 48 8d 5d 01 41 c1
RSP: 0018:ffffc9000313f8e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000054 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8a32ca65 RDI: ffffc9000313f9d8
RBP: ffffc9000313fab8 R08: 0000000000000005 R09: 000000000000002f
R10: 0000000000000018 R11: 00000000000619f8 R12: ffffffff8a8d7ba2
R13: 00000000fffffffe R14: ffffc9000313f9c8 R15: ffffc9000313fa40
FS:  00007f4d11f85380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002e65000 CR3: 00000000297ed000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 snprintf+0xc8/0x100 lib/vsprintf.c:2953
 print_caller kernel/printk/printk.c:1336 [inline]
 info_print_prefix+0x135/0x350 kernel/printk/printk.c:1355
 record_print_text+0x143/0x410 kernel/printk/printk.c:1402
 syslog_print+0x4e5/0x5d0 kernel/printk/printk.c:1613
 do_syslog+0x2d4/0x580 kernel/printk/printk.c:1732
 __do_sys_syslog kernel/printk/printk.c:1824 [inline]
 __se_sys_syslog kernel/printk/printk.c:1822 [inline]
 __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1822
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4d120e6fa7
Code: 73 01 c3 48 8b 0d 81 ce 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 ce 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc33fe81a8 EFLAGS: 00000206 ORIG_RAX: 0000000000000067
RAX: ffffffffffffffda RBX: 00007f4d122854a0 RCX: 00007f4d120e6fa7
RDX: 00000000000003ff RSI: 00007f4d122854a0 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000007 R09: 2e1019f737bfebd0
R10: 0000000000004000 R11: 0000000000000206 R12: 00007f4d122854a0
R13: 00007f4d12275212 R14: 00007f4d12285558 R15: 00007f4d12285558
 </TASK>