audit: type=1326 audit(1584257060.951:593): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10593 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45f68a code=0xffff0000
audit: type=1326 audit(1584257060.951:594): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10595 comm="syz-executor.3" exe="/root/syz-executor.3" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45f68a code=0xffff0000
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 96d37067 P4D 96d37067 PUD 936f5067 PMD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10762 Comm: syz-executor.1 Not tainted 4.19.109-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_syscall_64+0x107/0x620 arch/x86/entry/common.c:293
Code: 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c3 04 00 00 48 89 ef ff 14 dd 40 46 60 87 48 8d 7d 50 48 ba 00 00 00 00 00 fc ff df <48> 00 00 00 00 e9 03 80 3c 11 00 0f 85 be 04 00 00 48 89 45 50 e8
RSP: 0018:ffff88804dc87f28 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000023 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff81595e7e RDI: ffff88804dc87fa8
RBP: ffff88804dc87f58 R08: ffff8880497aa700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff88b25698 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000001092940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000009d29d000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45ad11
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 d4 d1 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:00007ffc75098f50 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 000000000015ac15 RCX: 000000000045ad11
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc75098f60
RBP: 0000000000000001 R08: 000000005a45d11e R09: 000000005a45d122
R10: 00007ffc75099050 R11: 0000000000000293 R12: 000000000076bf00
R13: 000000000076c900 R14: 000000000015a951 R15: 000000000076bfac
Modules linked in:
CR2: 0000000000000000
---[ end trace 6e574cf8f80b7938 ]---
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
RIP: 0010:do_syscall_64+0x107/0x620 arch/x86/entry/common.c:293
PGD 989ee067 
Code: 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c3 04 00 00 48 89 ef ff 14 dd 40 46 60 87 48 8d 7d 50 48 ba 00 00 00 00 00 fc ff df <48> 00 00 00 00 e9 03 80 3c 11 00 0f 85 be 04 00 00 48 89 45 50 e8
P4D 989ee067 
RSP: 0018:ffff88804dc87f28 EFLAGS: 00010282
PUD 989ef067 
PMD 0 
RAX: 0000000000000000 RBX: 0000000000000023 RCX: 0000000000000000
Oops: 0002 [#2] PREEMPT SMP KASAN
RDX: dffffc0000000000 RSI: ffffffff81595e7e RDI: ffff88804dc87fa8
CPU: 0 PID: 8126 Comm: syz-executor.1 Tainted: G      D           4.19.109-syzkaller #0
RBP: ffff88804dc87f58 R08: ffff8880497aa700 R09: 0000000000000000
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
RIP: 0010:do_syscall_64+0x107/0x620 arch/x86/entry/common.c:293
R13: ffffffff88b25698 R14: 0000000000000000 R15: 0000000000000000
Code: 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c3 04 00 00 48 89 ef ff 14 dd 40 46 60 87 48 8d 7d 50 48 ba 00 00 00 00 00 fc ff df <48> 00 00 00 00 e9 03 80 3c 11 00 0f 85 be 04 00 00 48 89 45 50 e8
FS:  0000000001092940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
RSP: 0018:ffff888094cc7f28 EFLAGS: 00010282
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RAX: 0000000000000000 RBX: 0000000000000023 RCX: 0000000000000000
CR2: 0000000000000000 CR3: 000000009d29d000 CR4: 00000000001426e0
RDX: dffffc0000000000 RSI: ffffffff81595e7e RDI: ffff888094cc7fa8
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
RBP: ffff888094cc7f58 R08: ffff88809425a4c0 R09: ffffed1015cc5751
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
R10: ffffed1015cc5750 R11: ffff8880ae62ba83 R12: 0000000000000000