list_del corruption, ffff88809fb09c00->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:48! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9930 Comm: syz-executor274 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f lib/list_debug.c:48 Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 65 71 88 e8 a0 ba be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 00 66 71 88 e8 8c ba be fd <0f> 0b 4c 89 f6 48 c7 c7 c0 66 71 88 e8 7b ba be fd 0f 0b cc cc cc RSP: 0018:ffffc90002137478 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88809fb09c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815e53a6 RDI: fffff52000426e81 RBP: ffffc90002137490 R08: 000000000000004e R09: ffffed1015d26621 R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 R13: ffffffff8a4c7270 R14: ffff88809fb09c00 R15: ffff8880a7d22800 FS: 00007f559a13f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe2554eef0 CR3: 00000000a2f93000 CR4: 00000000001406e0 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+0x1e53/0x2a50 net/netfilter/nf_tables_api.c:7258 nf_tables_abort+0x17/0x30 net/netfilter/nf_tables_api.c:7373 nfnetlink_rcv_batch+0xa5d/0x17a0 net/netfilter/nfnetlink.c:494 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] nfnetlink_rcv+0x3e7/0x460 net/netfilter/nfnetlink.c:561 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 ____sys_sendmsg+0x753/0x880 net/socket.c:2330 ___sys_sendmsg+0x100/0x170 net/socket.c:2384 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 __do_sys_sendmsg net/socket.c:2426 [inline] __se_sys_sendmsg net/socket.c:2424 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446c09 Code: e8 0c e8 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f559a13ed98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c09 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c R13: 000000200a000000 R14: 0000000000006c00 R15: 0000001000000014 Modules linked in: ---[ end trace bb2ba21f32651ed3 ]--- RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f lib/list_debug.c:48 Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 65 71 88 e8 a0 ba be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 00 66 71 88 e8 8c ba be fd <0f> 0b 4c 89 f6 48 c7 c7 c0 66 71 88 e8 7b ba be fd 0f 0b cc cc cc RSP: 0018:ffffc90002137478 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88809fb09c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815e53a6 RDI: fffff52000426e81 RBP: ffffc90002137490 R08: 000000000000004e R09: ffffed1015d26621 R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 R13: ffffffff8a4c7270 R14: ffff88809fb09c00 R15: ffff8880a7d22800 FS: 00007f559a13f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe2554eef0 CR3: 00000000a2f93000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400