------------[ cut here ]------------
kernel BUG at security/keys/keyring.c:1214!
gfs2: not a GFS2 filesystem
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10369 Comm: syz-executor5 Not tainted 5.0.0-rc1+ #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'kvm' (00000000186586c9): kobject_uevent_env
RIP: 0010:__key_link_begin+0x251/0x300 security/keys/keyring.c:1214
Code: ff 31 ff 41 89 c4 89 c6 e8 4c f5 3e fe 45 85 e4 0f 89 3a ff ff ff e8 be f3 3e fe 4c 89 ef e8 96 8a 4d 00 eb 0f e8 af f3 3e fe <0f> 0b e8 a8 f3 3e fe 45 89 ec e8 a0 f3 3e fe 48 89 da 48 b8 00 00
kobject: 'kvm' (00000000186586c9): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RSP: 0018:ffff888057fdfb90 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff888057fdfc98 RCX: ffffc9000fe77000
RDX: 000000000000043d RSI: ffffffff834303b1 RDI: 0000000000000007
RBP: ffff888057fdfbb8 R08: ffff8880576b8100 R09: fffffbfff1391495
R10: fffffbfff1391494 R11: ffffffff89c8a4a3 R12: ffff888094440540
R13: 0000000000000000 R14: ffff888057fdfc78 R15: ffff888057fdfd68
FS:  00007f3fb3e18700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 000000009866d000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 construct_alloc_key security/keys/request_key.c:389 [inline]
 construct_key_and_link security/keys/request_key.c:480 [inline]
 request_key_and_link+0x753/0x1890 security/keys/request_key.c:593
 __do_sys_request_key security/keys/keyctl.c:212 [inline]
 __se_sys_request_key security/keys/keyctl.c:157 [inline]
 __x64_sys_request_key+0x284/0x430 security/keys/keyctl.c:157
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 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:00007f3fb3e17c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f9
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000020000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000306fa4 R11: 0000000000000246 R12: 00007f3fb3e186d4
R13: 00000000004c4a9f R14: 00000000004d81e8 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop4' (00000000ab9ada62): kobject_uevent_env
kobject: 'loop4' (00000000ab9ada62): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000009583a7eb): kobject_uevent_env
kobject: 'loop2' (000000009583a7eb): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'kvm' (00000000186586c9): kobject_uevent_env
kobject: 'loop1' (000000005e1609f4): kobject_uevent_env
kobject: 'loop1' (000000005e1609f4): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'kvm' (00000000186586c9): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000ab9ada62): kobject_uevent_env
---[ end trace 339323990cabe483 ]---
kobject: 'loop4' (00000000ab9ada62): kobject_uevent_env
RIP: 0010:__key_link_begin+0x251/0x300 security/keys/keyring.c:1214
kobject: 'kvm' (00000000186586c9): kobject_uevent_env
Code: ff 31 ff 41 89 c4 89 c6 e8 4c f5 3e fe 45 85 e4 0f 89 3a ff ff ff e8 be f3 3e fe 4c 89 ef e8 96 8a 4d 00 eb 0f e8 af f3 3e fe <0f> 0b e8 a8 f3 3e fe 45 89 ec e8 a0 f3 3e fe 48 89 da 48 b8 00 00
kobject: 'loop4' (00000000ab9ada62): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000ab9ada62): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'kvm' (00000000186586c9): kobject_uevent_env
RSP: 0018:ffff888057fdfb90 EFLAGS: 00010216
kobject: 'kvm' (00000000186586c9): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RAX: 0000000000040000 RBX: ffff888057fdfc98 RCX: ffffc9000fe77000
gfs2: not a GFS2 filesystem
kobject: 'kvm' (00000000186586c9): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RDX: 000000000000043d RSI: ffffffff834303b1 RDI: 0000000000000007
RBP: ffff888057fdfbb8 R08: ffff8880576b8100 R09: fffffbfff1391495
kobject: 'loop4' (00000000ab9ada62): kobject_uevent_env
kobject: 'loop4' (00000000ab9ada62): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'kvm' (00000000186586c9): kobject_uevent_env
R10: fffffbfff1391494 R11: ffffffff89c8a4a3 R12: ffff888094440540
R13: 0000000000000000 R14: ffff888057fdfc78 R15: ffff888057fdfd68
kobject: 'kvm' (00000000186586c9): fill_kobj_path: path = '/devices/virtual/misc/kvm'
FS:  00007f3fb3e18700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 000000009866d000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop1' (000000005e1609f4): kobject_uevent_env