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kernel BUG at security/keys/keyring.c:1221!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 1 PID: 31371 Comm: syz-executor1 Not tainted 4.14.74+ #17
task: ffff8801a05c5e00 task.stack: ffff8801cdef8000
RIP: 0010:__key_link_begin+0x1f5/0x2b0 security/keys/keyring.c:1221
RSP: 0018:ffff8801cdeffc18 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8801d6cc8180 RCX: 0000000000009eaa
RDX: ffffffff819bcd95 RSI: ffffc90000782000 RDI: ffff8801cdeffd78
RBP: ffff8801cdeffd68 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8801a05c6680 R11: 0000000000000001 R12: 1ffff10039bdff91
R13: ffff8801cdeffd68 R14: ffff8801c93513c0 R15: ffff8801cdeffce8
FS:  00007f7d1d0e8700(0000) GS:ffff8801dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2ef29ec50 CR3: 00000001cae28001 CR4: 00000000001606a0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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+0x50f/0xa20 security/keys/request_key.c:595
 SYSC_request_key security/keys/keyctl.c:213 [inline]
 SyS_request_key+0x20e/0x2c0 security/keys/keyctl.c:158
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457579
RSP: 002b:00007f7d1d0e7c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000f9
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000004260dce R11: 0000000000000246 R12: 00007f7d1d0e86d4
R13: 00000000004c32af R14: 00000000004d4ec0 R15: 00000000ffffffff
Code: 94 ff 48 c7 c7 00 8e fd 9b e8 08 3f 83 ff eb ac e8 31 ef 94 ff 48 c7 c7 00 8e fd 9b e8 75 34 e9 00 e9 00 ff ff ff e8 1b ef 94 ff <0f> 0b e8 14 ef 94 ff 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 
RIP: __key_link_begin+0x1f5/0x2b0 security/keys/keyring.c:1221 RSP: ffff8801cdeffc18
---[ end trace 4ea2673e06828060 ]---