list_del corruption, ffff888099d55800->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:50! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8938 Comm: syz-executor625 Not tainted 5.5.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0xd3/0x100 lib/list_debug.c:48 Code: 41 5e 41 5f 5d c3 48 c7 c7 93 0d cf 88 4c 89 f6 31 c0 e8 33 35 c1 fd 0f 0b 48 c7 c7 cb 0d cf 88 4c 89 f6 31 c0 e8 20 35 c1 fd <0f> 0b 48 c7 c7 03 0e cf 88 4c 89 f6 31 c0 e8 0d 35 c1 fd 0f 0b 48 RSP: 0018:ffffc900023a7780 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff8880983452b0 RCX: 7a36b50dad3bbb00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900023a77a0 R08: ffffffff815f9f94 R09: ffffed1015d865e0 R10: ffffed1015d865e0 R11: 0000000000000000 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888099d55800 R15: dead000000000122 FS: 00007fdcea9db700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc5fd3bfe0 CR3: 00000000a0beb000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:131 [inline] list_del_rcu include/linux/rculist.h:148 [inline] __nf_tables_abort+0x16d2/0x2e80 net/netfilter/nf_tables_api.c:7258 nf_tables_abort+0x15/0x30 net/netfilter/nf_tables_api.c:7373 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:494 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] nfnetlink_rcv+0x1a88/0x1e50 net/netfilter/nfnetlink.c:561 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x767/0x920 net/netlink/af_netlink.c:1328 netlink_sendmsg+0xa2c/0xd50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg net/socket.c:659 [inline] ____sys_sendmsg+0x4f7/0x7f0 net/socket.c:2330 ___sys_sendmsg net/socket.c:2384 [inline] __sys_sendmsg+0x1ed/0x290 net/socket.c:2417 __do_sys_sendmsg net/socket.c:2426 [inline] __se_sys_sendmsg net/socket.c:2424 [inline] __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2424 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446d09 Code: e8 8c e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 fb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fdcea9dad98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446d09 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c R13: 000000200a000000 R14: 0000000000006c00 R15: 0000001000000014 Modules linked in: ---[ end trace ef458363a9d94658 ]--- RIP: 0010:__list_del_entry_valid+0xd3/0x100 lib/list_debug.c:48 Code: 41 5e 41 5f 5d c3 48 c7 c7 93 0d cf 88 4c 89 f6 31 c0 e8 33 35 c1 fd 0f 0b 48 c7 c7 cb 0d cf 88 4c 89 f6 31 c0 e8 20 35 c1 fd <0f> 0b 48 c7 c7 03 0e cf 88 4c 89 f6 31 c0 e8 0d 35 c1 fd 0f 0b 48 RSP: 0018:ffffc900023a7780 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff8880983452b0 RCX: 7a36b50dad3bbb00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900023a77a0 R08: ffffffff815f9f94 R09: ffffed1015d865e0 R10: ffffed1015d865e0 R11: 0000000000000000 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888099d55800 R15: dead000000000122 FS: 00007fdcea9db700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdcea9b9e78 CR3: 00000000a0beb000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400