random: crng init done ------------[ cut here ]------------ kernel BUG at security/keys/keyring.c:1107! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 2039 Comm: syz-executor631 Not tainted 4.9.131+ #50 task: ffff8801d18e5f00 task.stack: ffff8801cf1e0000 RIP: 0010:[] [] __key_link_begin+0x20c/0x2d0 security/keys/keyring.c:1107 RSP: 0018:ffff8801cf1e7be0 EFLAGS: 00010293 RAX: ffff8801d18e5f00 RBX: ffff8801d533e300 RCX: 1ffff10039e3cf71 RDX: 0000000000000000 RSI: ffffffff819c0d4c RDI: ffff8801cf1e7d68 RBP: ffff8801cf1e7c10 R08: ffffffff83c9ec20 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8801cf1e7d58 R13: ffffffff831c0c20 R14: ffff8801cf1e7d58 R15: ffff8801d533e300 FS: 0000000000a4c880(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020caaffb CR3: 00000001d1308000 CR4: 00000000001606b0 Stack: ffff8801cf1e7cd8 ffff8801cf1e7df8 ffff8801d533e480 ffffffff831c0c20 ffff8801cf1e7d58 ffff8801d533e300 ffff8801cf1e7e20 ffffffff819ca295 0000000000000000 0000000000000000 ffff8801d18e67a8 ffff8801cf1e7cd8 Call Trace: [] construct_alloc_key security/keys/request_key.c:388 [inline] [] construct_key_and_link security/keys/request_key.c:479 [inline] [] request_key_and_link+0x535/0xac0 security/keys/request_key.c:594 [] SYSC_request_key security/keys/keyctl.c:213 [inline] [] SyS_request_key+0x233/0x2f0 security/keys/keyctl.c:158 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: 95 ff 48 c7 c7 00 f6 1b 83 e8 41 c2 83 ff eb ac e8 2a a8 95 ff 48 c7 c7 00 f6 1b 83 e8 be c8 e3 00 e9 f3 fe ff ff e8 14 a8 95 ff <0f> 0b e8 0d a8 95 ff 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 RIP [] __key_link_begin+0x20c/0x2d0 security/keys/keyring.c:1107 RSP ---[ end trace 5a915618df1445dd ]---