audit: backlog limit exceeded
audit: audit_backlog=65 > audit_backlog_limit=64
audit: audit_lost=580 audit_rate_limit=0 audit_backlog_limit=64
INFO: task syz-executor2:6755 blocked for more than 140 seconds.
      Not tainted 4.14.68+ #4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor2   D28504  6755  31016 0x00000000
Call Trace:
 schedule+0x7f/0x1b0 kernel/sched/core.c:3490
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893
 dev_ioctl+0x281/0xce0 net/core/dev_ioctl.c:421
 sock_do_ioctl+0x92/0xb0 net/socket.c:980
 sock_ioctl+0x263/0x430 net/socket.c:1070
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1a0/0x1030 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7e/0xb0 fs/ioctl.c:692
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457099
RSP: 002b:00007fc10a8d9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc10a8da6d4 RCX: 0000000000457099
RDX: 0000000020000280 RSI: 0000000000008912 RDI: 0000000000000007
RBP: 00000000009301e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004cd9a8 R14: 00000000004c40b1 R15: 0000000000000002
INFO: task syz-executor3:6765 blocked for more than 140 seconds.
      Not tainted 4.14.68+ #4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor3   D29768  6765   1840 0x00000004
Call Trace:
 schedule+0x7f/0x1b0 kernel/sched/core.c:3490
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893
 dev_ioctl+0x281/0xce0 net/core/dev_ioctl.c:421
 sock_do_ioctl+0x92/0xb0 net/socket.c:980
 sock_ioctl+0x263/0x430 net/socket.c:1070
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1a0/0x1030 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7e/0xb0 fs/ioctl.c:692
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457099
RSP: 002b:00007fce1579ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fce1579b6d4 RCX: 0000000000457099
RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000005
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004cfd78 R14: 00000000004c5f16 R15: 0000000000000000

Showing all locks held in the system:
1 lock held by khungtaskd/23: