netlink: 12 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 104 bytes leftover after parsing attributes in process `syz-executor2'. WARNING: CPU: 0 PID: 7024 at net/xfrm/xfrm_policy.c:761 xfrm_policy_insert+0x8e9/0x16f0 net/xfrm/xfrm_policy.c:761 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7024 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #314 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:969 RIP: 0010:xfrm_policy_insert+0x8e9/0x16f0 net/xfrm/xfrm_policy.c:761 Code: 14 20 48 89 f8 83 e0 07 83 c0 03 38 d0 0f 8c c4 f9 ff ff 84 d2 0f 84 bc f9 ff ff e8 11 c4 f4 fa e9 b2 f9 ff ff e8 07 75 b1 fa <0f> 0b 48 8b 85 e0 fe ff ff 0f b6 10 48 8b 85 e8 fe ff ff 83 e0 07 RSP: 0018:ffff88818680f250 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff888190189200 RCX: ffffc9000de3e000 RDX: 000000000000edac RSI: ffffffff86ce15e9 RDI: ffff888190189420 RBP: ffff88818680f3d8 R08: ffff888191afa440 R09: ffffed1030d01e37 R10: ffffed1030d01e37 R11: 0000000000000003 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 xfrm_add_policy+0x2a0/0x6f0 net/xfrm/xfrm_user.c:1657 kobject: 'loop1' (00000000982f73ec): kobject_uevent_env kobject: 'loop1' (00000000982f73ec): fill_kobj_path: path = '/devices/virtual/block/loop1' xfrm_user_rcv_msg+0x44c/0x8e0 net/xfrm/xfrm_user.c:2663 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 kobject: 'loop5' (000000004e6dd49d): kobject_uevent_env xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2671 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 kobject: 'loop5' (000000004e6dd49d): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1da674ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1da674f6d4 R13: 00000000004c4027 R14: 00000000004d6868 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..