ptrace attach of "/root/syz-executor.2"[9549] was attempted by "/root/syz-executor.2"[9551]
INFO: task syz-executor.3:9501 blocked for more than 140 seconds.
      Not tainted 4.14.166-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28048  9501   7327 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2808 [inline]
 __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
 schedule+0x92/0x1c0 kernel/sched/core.c:3428
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline]
 rwsem_down_write_failed+0x5ce/0xb50 kernel/locking/rwsem-xadd.c:617
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 inode_lock include/linux/fs.h:718 [inline]
 process_measurement+0xb2b/0xb80 security/integrity/ima/ima_main.c:206
 ima_file_check+0x30/0x40 security/integrity/ima/ima_main.c:353
 do_last fs/namei.c:3432 [inline]
 path_openat+0x1626/0x3f70 fs/namei.c:3566
 do_filp_open+0x18e/0x250 fs/namei.c:3600
 do_sys_open+0x2c5/0x430 fs/open.c:1084
 SYSC_openat fs/open.c:1111 [inline]
 SyS_openat+0x30/0x40 fs/open.c:1105
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45b159
RSP: 002b:00007fd67f344c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd67f3456d4 RCX: 000000000045b159
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000764 R14: 00000000004c8a79 R15: 000000000075bfd4