INFO: task syz.0.2245:22463 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2245      state:D stack:25112 pid:22463 tgid:22459 ppid:22031  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 fuse_file_write_iter+0x344/0x11a0
 vfs_write+0x612/0xba0
 __x64_sys_pwrite64+0x196/0x220
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65ef79ce59
RSP: 002b:00007f65f06f2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f65efa16090 RCX: 00007f65ef79ce59
RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000008
RBP: 00007f65ef832e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000c00 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f65efa16128 R14: 00007f65efa16090 R15: 00007ffc86a602c8
 </TASK>
INFO: task syz.0.2245:22534 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2245      state:D stack:27832 pid:22534 tgid:22459 ppid:22031  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 process_measurement+0x443/0x1c10
 ima_file_check+0xe1/0x130
 security_file_post_open+0xb3/0x260
 path_openat+0x2e90/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65ef79ce59
RSP: 002b:00007f65f06d1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f65efa16180 RCX: 00007f65ef79ce59
RDX: 0000000000000042 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007f65ef832e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f65efa16218 R14: 00007f65efa16180 R15: 00007ffc86a602c8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 35 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x380
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 28214 Comm: syz.1.2613 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:rcu_is_watching+0x0/0xb0
Code: c7 c7 e0 f2 95 8e e8 9f 84 49 03 eb cc 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 53 65 ff 05 c0 23 94 11 e8 8b 95 07 0a 89
RSP: 0018:ffffc9000bf5f0a0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e959be0
RBP: ffffffff8176b21f R08: 0000000000000000 R09: 0000000000000000
R10: ffffc9000bf5f298 R11: fffff520017ebe55 R12: 0000000000000002
R13: ffffffff8e959be0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f259589d6c0(0000) GS:ffff88818dc2d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed1a9ea2f8 CR3: 000000011df80000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x5f/0x350
 unwind_next_frame+0xac/0x2550
 __unwind_start+0x514/0x660
 arch_stack_walk+0xe3/0x150
 stack_trace_save+0xa9/0x100
 save_stack+0x122/0x230
 __reset_page_owner+0x71/0x1f0
 free_unref_folios+0xd87/0x14a0
 folios_put_refs+0x9e9/0xb30
 shmem_undo_range+0x4e6/0x15d0
 shmem_evict_inode+0x280/0xa80
 evict+0x624/0xb50
 dentry_kill+0x1b9/0x880
 finish_dput+0x1a/0x260
 __fput+0x675/0xa50
 fput_close_sync+0x11f/0x240
 __x64_sys_close+0x7e/0x110
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f259495d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f259589cda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f259589d6c0 RCX: 00007f259495d68e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007f259589cee0 R14: 00007f259589cea0 R15: 00007f258a600000
 </TASK>
