audit: type=1400 audit(1573119798.938:1277): avc:  denied  { create } for  pid=20889 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=0
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 20910 Comm: syz-executor.4 Not tainted 4.4.174+ #17
task: ffff8800b6a28000 task.stack: ffff8801a30c0000
RIP: 0010:[<ffffffff8157fe02>]  [<ffffffff8157fe02>] file_end_write include/linux/fs.h:2555 [inline]
RIP: 0010:[<ffffffff8157fe02>]  [<ffffffff8157fe02>] aio_run_iocb+0x532/0x6f0 fs/aio.c:1480
RSP: 0018:ffff8801a30c7b20  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: fffffffffffffdef RCX: ffffc90004577000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800b6a29060
RBP: ffff8801a30c7cd8 R08: 1ffffd4000c69aa5 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d4004c80
R13: 1ffff10034618f6a R14: 0000000000000000 R15: ffff8801d5417020
FS:  0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:00000000f5205b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020cd01ff CR3: 00000001ce8f7000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8800b6a288c8 ffffffff8154fcc0 0000000100000002 ffff880000000001
 377140be6b5ef4c7 0000000020000000 0000000041b58ab3 ffffffff82c5ee80
 ffffffff8157f8d0 ffff8800b6a288b8 0000000041b58ab3 ffffffff82c4d560
Call Trace:
 [<ffffffff81584279>] io_submit_one fs/aio.c:1579 [inline]
 [<ffffffff81584279>] do_io_submit+0x639/0xf10 fs/aio.c:1637
 [<ffffffff81598244>] C_SYSC_io_submit fs/compat.c:651 [inline]
 [<ffffffff81598244>] compat_SyS_io_submit+0xe4/0x140 fs/compat.c:636
 [<ffffffff8100603d>] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline]
 [<ffffffff8100603d>] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397
 [<ffffffff8271a350>] sysenter_flags_fixed+0xd/0x1a
Code: ea 03 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 7c 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 76 20 4c 89 f2 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e 64 01 00 00 41 0f b7 06 66 
RIP  [<ffffffff8157fe02>] file_end_write include/linux/fs.h:2555 [inline]
RIP  [<ffffffff8157fe02>] aio_run_iocb+0x532/0x6f0 fs/aio.c:1480
 RSP <ffff8801a30c7b20>
audit: type=1400 audit(1573119799.458:1278): avc:  denied  { create } for  pid=20893 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=0
---[ end trace ac0f22e5f23f70c4 ]---