list_del corruption, ffff888098c85400->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:48! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9799 Comm: syz-executor778 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.cold+0x37/0x4f lib/list_debug.c:48 Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 60 69 71 88 e8 e0 de be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 c0 69 71 88 e8 cc de be fd <0f> 0b 4c 89 f6 48 c7 c7 80 6a 71 88 e8 bb de be fd 0f 0b cc cc cc RSP: 0018:ffffc900022a7468 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff888098c85400 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000454e7f RBP: ffffc900022a7480 R08: 000000000000004e R09: ffffed1015d06621 R10: ffffed1015d06620 R11: ffff8880ae833107 R12: dead000000000122 R13: ffffffff8a4c74b0 R14: ffff888098c85400 R15: ffff8880a4fbe280 FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f7f27b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020000280 CR3: 000000009932f000 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+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 __compat_sys_sendmsg net/compat.c:642 [inline] __do_compat_sys_sendmsg net/compat.c:649 [inline] __se_compat_sys_sendmsg net/compat.c:646 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:646 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x27b/0xe16 arch/x86/entry/common.c:408 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f2b9a9 Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f7f2712c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000280 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000080fd000 RBP: 00000000080fd00c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 17b09d4dfd5844f7 ]--- 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 60 69 71 88 e8 e0 de be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 c0 69 71 88 e8 cc de be fd <0f> 0b 4c 89 f6 48 c7 c7 80 6a 71 88 e8 bb de be fd 0f 0b cc cc cc RSP: 0018:ffffc900022a7468 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff888098c85400 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000454e7f RBP: ffffc900022a7480 R08: 000000000000004e R09: ffffed1015d06621 R10: ffffed1015d06620 R11: ffff8880ae833107 R12: dead000000000122 R13: ffffffff8a4c74b0 R14: ffff888098c85400 R15: ffff8880a4fbe280 FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f7f27b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7f06db0 CR3: 000000009932f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400