audit: type=1804 audit(1573037200.148:68): pid=7830 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir241279599/syzkaller.tR3ZGg/19/file0" dev="sda1" ino=16630 res=1
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP:           (null)
kobject: 'loop5' (ffff8880a4ad22e0): kobject_uevent_env
PGD a9144067 P4D a9144067 PUD a126e067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7853 Comm: syz-executor.1 Not tainted 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805a04e340 task.stack: ffff888059b98000
RIP: 0010:          (null)
RSP: 0018:ffff888059b9fd48 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff88151060 RCX: ffffc90009a6b000
RDX: 1ffffffff102a223 RSI: 0000000000000000 RDI: ffff88809fb0b800
RBP: ffff888059b9fd68 R08: 0000000000000001 R09: ffff88805a04ebe0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809fb0b800
R13: ffff88809fb0b80e R14: 000000000000001c R15: 0000000000000002
FS:  00007f40924e0700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000a0b99000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 inet_autobind+0xae/0x180 net/ipv4/af_inet.c:181
 inet_dgram_connect+0x136/0x1e0 net/ipv4/af_inet.c:538
 SYSC_connect+0x1f6/0x2d0 net/socket.c:1655
 SyS_connect+0x24/0x30 net/socket.c:1636
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a219
RSP: 002b:00007f40924dfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219
RDX: 000000000000001c RSI: 00000000208c0000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f40924e06d4
R13: 00000000004c09aa R14: 00000000004d3358 R15: 00000000ffffffff
Code:  Bad RIP value.
RIP:           (null) RSP: ffff888059b9fd48
CR2: 0000000000000000
audit: type=1804 audit(1573037200.198:69): pid=7830 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.0" name="/root/syzkaller-testdir241279599/syzkaller.tR3ZGg/19/file0" dev="sda1" ino=16630 res=1
kobject: 'loop5' (ffff8880a4ad22e0): fill_kobj_path: path = '/devices/virtual/block/loop5'
---[ end trace 388df0e4f79bfd97 ]---
kobject: 'loop4' (ffff8880a4aa8260): kobject_uevent_env