INFO: task syz-executor613:6567 can't die for more than 143 seconds.
task:syz-executor613 state:R  running task     stack:26880 pid: 6567 ppid:  6566 flags:0x00004006
Call Trace:

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: ffffffff8b97fbe0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by in:imklog/6267:
 #0: ffff888014daf9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by syz-executor613/6567:

=============================================

Kernel panic - not syncing: hung_task: blocked tasks
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.14.0-rc7-next-20210827-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
 panic+0x2b0/0x6dd kernel/panic.c:232
 check_hung_uninterruptible_tasks kernel/hung_task.c:258 [inline]
 watchdog.cold+0x1ca/0x1de kernel/hung_task.c:339
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Kernel Offset: disabled
Rebooting in 86400 seconds..