kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kobject: 'loop0' (00000000c98fa24e): kobject_uevent_env
CPU: 0 PID: 24464 Comm: syz-executor2 Not tainted 4.20.0+ #394
kobject: 'loop0' (00000000c98fa24e): fill_kobj_path: path = '/devices/virtual/block/loop0'
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+0x2e7/0x560 security/keys/keyctl_pkey.c:96
Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24
RSP: 0018:ffff888051fbfb70 EFLAGS: 00010246
RAX: 1e1d88822587b5c0 RBX: ffff888051fbfd60 RCX: ffffc9001044c000
RDX: 0000000000000000 RSI: ffffffff8343f82e RDI: 0000000000000001
kobject: 'loop3' (000000002429389e): kobject_uevent_env
RBP: ffff888051fbfce0 R08: ffff88808a47a040 R09: ffffed10137b51e0
R10: ffffed10137b51e0 R11: 0000000000000001 R12: f0ec44112c3dae00
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f272ed43700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ca24000 CR3: 0000000093297000 CR4: 00000000001406f0
kobject: 'loop3' (000000002429389e): fill_kobj_path: path = '/devices/virtual/block/loop3'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 keyctl_pkey_query+0xb8/0x2b0 security/keys/keyctl_pkey.c:173
 __do_sys_keyctl security/keys/keyctl.c:1752 [inline]
 __se_sys_keyctl security/keys/keyctl.c:1636 [inline]
 __x64_sys_keyctl+0x15f/0x430 security/keys/keyctl.c:1636
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4579b9
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f272ed42c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004579b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000940000 R11: 0000000000000246 R12: 00007f272ed436d4
R13: 00000000004c3346 R14: 00000000004d5b68 R15: 00000000ffffffff
Modules linked in:
---[ end trace fb543cda6082e080 ]---
RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline]
RIP: 0010:keyctl_pkey_params_get+0x2e7/0x560 security/keys/keyctl_pkey.c:96
Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24
RSP: 0018:ffff888051fbfb70 EFLAGS: 00010246
RAX: 1e1d88822587b5c0 RBX: ffff888051fbfd60 RCX: ffffc9001044c000
RDX: 0000000000000000 RSI: ffffffff8343f82e RDI: 0000000000000001
kobject: 'loop4' (00000000be4bfff2): kobject_uevent_env
RBP: ffff888051fbfce0 R08: ffff88808a47a040 R09: ffffed10137b51e0
kobject: 'loop4' (00000000be4bfff2): fill_kobj_path: path = '/devices/virtual/block/loop4'
R10: ffffed10137b51e0 R11: 0000000000000001 R12: f0ec44112c3dae00
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f272ed43700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ca24000 CR3: 0000000093297000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400