audit: type=1800 audit(1546311853.313:30): pid=7366 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7523 Comm: syz-executor732 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline]
RIP: 0010:keyctl_pkey_params_get+0x284/0x550 security/keys/keyctl_pkey.c:96
Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31
RSP: 0018:ffff88808ed7fba0 EFLAGS: 00010246
RAX: 088a9f133ab43f40 RBX: ffff88808ed7fd58 RCX: ffffffff83434b9d
RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001
RBP: ffff88808ed7fce8 R08: ffff88809193a140 R09: ffffed1012537ba9
R10: ffffed1012537ba8 R11: 0000000000000005 R12: 0000000000000000
R13: dffffc0000000000 R14: 4454f899d5a1fa00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7fc4b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020000300 CR3: 000000008f721000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 keyctl_pkey_query+0xb8/0x2a0 security/keys/keyctl_pkey.c:173
 __do_compat_sys_keyctl security/keys/compat.c:147 [inline]
 __se_compat_sys_keyctl security/keys/compat.c:59 [inline]
 __ia32_compat_sys_keyctl+0x152/0x420 security/keys/compat.c:59
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x333/0xf98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fc8869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f7fc41ec EFLAGS: 00000296 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 9df8b8b3bca83c70 ]---
RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline]
RIP: 0010:keyctl_pkey_params_get+0x284/0x550 security/keys/keyctl_pkey.c:96
Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31
RSP: 0018:ffff88808ed7fba0 EFLAGS: 00010246
RAX: 088a9f133ab43f40 RBX: ffff88808ed7fd58 RCX: ffffffff83434b9d
RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001
RBP: ffff88808ed7fce8 R08: ffff88809193a140 R09: ffffed1012537ba9
R10: ffffed1012537ba8 R11: 0000000000000005 R12: 0000000000000000
R13: dffffc0000000000 R14: 4454f899d5a1fa00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7fc4b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020000300 CR3: 000000008f721000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400