kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12441 Comm: syz-executor5 Not tainted 4.20.0+ #396
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:ffff88804d11fa90 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff88804d11fd60 RCX: ffffc9000fe55000
kobject: 'loop4' (00000000ecd52914): kobject_uevent_env
RDX: 0000000000000005 RSI: ffffffff8344323e RDI: 0000000000000001
RBP: ffff88804d11fc00 R08: ffff888093fec580 R09: ffffed1015273ac8
R10: ffffed1015273ac9 R11: 0000000000000002 R12: 0000000000000005
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc5b5cd3700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000940004 CR3: 00000000a0911000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
kobject: 'loop4' (00000000ecd52914): fill_kobj_path: path = '/devices/virtual/block/loop4'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130
 keyctl_pkey_e_d_s+0xb0/0x4f0 security/keys/keyctl_pkey.c:218
 __do_sys_keyctl security/keys/keyctl.c:1759 [inline]
 __se_sys_keyctl security/keys/keyctl.c:1636 [inline]
 __x64_sys_keyctl+0x12f/0x430 security/keys/keyctl.c:1636
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'kvm' (00000000d3cbe03d): kobject_uevent_env
kobject: 'kvm' (00000000d3cbe03d): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fc5b5cd2c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 0000000020000280 RSI: 0000000020884a6c RDI: 0000000000000019
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000340 R11: 0000000000000246 R12: 00007fc5b5cd36d4
R13: 00000000004c37ba R14: 00000000004d6000 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop1' (00000000c9584412): kobject_uevent_env
---[ end trace c6407df191e75968 ]---
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
kobject: 'loop1' (00000000c9584412): fill_kobj_path: path = '/devices/virtual/block/loop1'
RSP: 0018:ffff88804d11fa90 EFLAGS: 00010206
kobject: 'loop3' (00000000890e3e0f): kobject_uevent_env
kobject: 'loop3' (00000000890e3e0f): fill_kobj_path: path = '/devices/virtual/block/loop3'
RAX: 0000000000000000 RBX: ffff88804d11fd60 RCX: ffffc9000fe55000
RDX: 0000000000000005 RSI: ffffffff8344323e RDI: 0000000000000001
kobject: 'loop2' (00000000889967f2): kobject_uevent_env
kobject: 'loop2' (00000000889967f2): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000c9584412): kobject_uevent_env
kobject: 'loop1' (00000000c9584412): fill_kobj_path: path = '/devices/virtual/block/loop1'
RBP: ffff88804d11fc00 R08: ffff888093fec580 R09: ffffed1015273ac8
R10: ffffed1015273ac9 R11: 0000000000000002 R12: 0000000000000005
kobject: 'loop1' (00000000c9584412): kobject_uevent_env
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
kobject: 'loop1' (00000000c9584412): fill_kobj_path: path = '/devices/virtual/block/loop1'
FS:  00007fc5b5cd3700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
kobject: 'loop2' (00000000889967f2): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop2' (00000000889967f2): fill_kobj_path: path = '/devices/virtual/block/loop2'
CR2: 00007f1617711848 CR3: 00000000a0911000 CR4: 00000000001426e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop1' (00000000c9584412): kobject_uevent_env
kobject: 'loop1' (00000000c9584412): fill_kobj_path: path = '/devices/virtual/block/loop1'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
kobject: 'loop3' (00000000890e3e0f): kobject_uevent_env
kobject: 'loop3' (00000000890e3e0f): fill_kobj_path: path = '/devices/virtual/block/loop3'