INFO: task syz.3.6402:6346 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.6402      state:D stack:0     pid:6346  tgid:6345  ppid:1919   task_flags:0x400140 flags:0x00000001
dump_backtrace(regs = 0000000000000000 tsk = 00000000aa6b0cee)
Call trace:
 __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x135c/0x2b00 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7376
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x5d4/0x1078 kernel/locking/mutex.c:821
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:874
 process_measurement+0x5b4/0x17d4 security/integrity/ima/ima_main.c:319
 ima_file_check+0xd0/0x11c security/integrity/ima/ima_main.c:685
 security_file_post_open+0x94/0x280 security/security.c:2755
 do_open fs/namei.c:4868 [inline]
 path_openat+0x10d0/0x18f0 fs/namei.c:5029
 do_file_open+0x1c8/0x2e8 fs/namei.c:5058
 do_sys_openat2+0x114/0x1e8 fs/open.c:1417
 do_sys_open+0xb0/0xe0 fs/open.c:1423
 __do_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __arm64_sys_openat+0xa8/0xc4 fs/open.c:1434
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
INFO: lockdep is turned off.