audit: type=1800 audit(1598129726.515:18721): pid=5690 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=16159 res=0
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3709 Comm: systemd-udevd Not tainted 4.19.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:syscall_trace_enter+0x1a/0xd60 arch/x86/entry/common.c:69
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 07 00 07 00 00 <07> 00 07 07 00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffff88808f31ff20 EFLAGS: 00010283
RAX: ffff88808f3146c0 RBX: 0000000000000006 RCX: ffffffff8100988f
RDX: 0000000000000000 RSI: ffffffff81009c7e RDI: ffff88808f31ff58
RBP: ffff88808f31ff58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000100
R13: ffffffff88d25b58 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f62e16338c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000020bca58 CR3: 000000008eca0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f62e04a6335
Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffeb11d0768 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 000055c89dc7c990 RCX: 00007f62e04a6335
RDX: 00007ffeb11d07a0 RSI: 00007ffeb11d07a0 RDI: 000055c89dc7b990
RBP: 00007ffeb11d0860 R08: 00007f62e07651f8 R09: 0000000000001010
R10: 00007f62e0764b58 R11: 0000000000000246 R12: 000055c89dc7b990
R13: 000055c89dc7b9a4 R14: 000055c89dc812fd R15: 000055c89dc81344
Modules linked in:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 88059067 P4D 88059067 PUD 8805a067 PMD 0 
Oops: 0002 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 6484 Comm: syz-executor.2 Tainted: G      D           4.19.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
Code: 07 00 00 00 00 00 00 00 00 00 07 00 00 07 00 00 00 07 00 07 00 00 07 07 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffff8880a50dff28 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000023 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b6fbe RDI: 0000000000000001
RBP: ffff8880a50dff58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff88d25b58 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000002d43940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000088058000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b9a1
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 84 cf fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffef7921310 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 000000000019bc1d RCX: 000000000045b9a1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffef7921320
RBP: 0000000000001566 R08: 0000000000000000 R09: 0000000002d43940
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000000e
R13: 00007ffef7921370 R14: 000000000019bbc5 R15: 00007ffef7921380
Modules linked in:
CR2: 0000000000000000
---[ end trace 29a4d24bb1b2466c ]---
RIP: 0010:syscall_trace_enter+0x1a/0xd60 arch/x86/entry/common.c:69
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 07 00 07 00 00 <07> 00 07 07 00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffff88808f31ff20 EFLAGS: 00010283
RAX: ffff88808f3146c0 RBX: 0000000000000006 RCX: ffffffff8100988f
RDX: 0000000000000000 RSI: ffffffff81009c7e RDI: ffff88808f31ff58
RBP: ffff88808f31ff58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000100
R13: ffffffff88d25b58 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000002d43940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000088058000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400