WARNING: CPU: 1 PID: 22771 at net/key/af_key.c:111 pfkey_sock_destruct+0x574/0x610 net/key/af_key.c:111 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 22771 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #153 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:pfkey_sock_destruct+0x574/0x610 net/key/af_key.c:111 Code: 00 48 c7 c7 40 8b c9 88 c6 05 12 28 16 03 01 e8 a6 6b 65 fa e9 70 fc ff ff e8 88 e8 82 fa 0f 0b e9 a8 fe ff ff e8 7c e8 82 fa <0f> 0b e9 ed fd ff ff 48 89 c7 e8 dd 4d c6 fa e9 40 fe ff ff 4c 89 RSP: 0018:ffff8881819bf6a0 EFLAGS: 00010293 RAX: ffff8881be544100 RBX: ffff8881d7892100 RCX: ffffffff86fc99da RDX: 0000000000000000 RSI: ffffffff86fc9bf4 RDI: 0000000000000005 RBP: ffff8881819bf7b0 R08: ffff8881be544100 R09: ffffed103af1245b R10: ffffed103af1245b R11: ffff8881d78922db R12: 1ffff11030337ed5 R13: ffff8881819bf788 R14: 1ffff11030337ed9 R15: ffff8881cbd2b9c0 __sk_destruct+0x107/0xa80 net/core/sock.c:1561 sk_destruct+0x78/0x90 net/core/sock.c:1596 __sk_free+0xcf/0x300 net/core/sock.c:1607 sk_free+0x42/0x50 net/core/sock.c:1618 sock_put include/net/sock.h:1693 [inline] pfkey_release+0x409/0x570 net/key/af_key.c:194 __sock_release+0xd7/0x250 net/socket.c:579 sock_close+0x19/0x20 net/socket.c:1141 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411121 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffc420db600 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411121 RDX: 0000000000000000 RSI: 0000000000731198 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000731190 R09: 0000000000000000 R10: 00007ffc420db520 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000004b1 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..