non-slab/vmalloc memory list_del corruption. prev->next should be ffff88805a2e6d00, but was ffffffff8f21e700. (prev=ffffffff8f21e700) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 6903 Comm: syz.2.107 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 cb 90 5f fd 43 80 3c 2c 00 74 08 4c 89 ff e8 8c 20 82 fd 49 8b 17 48 c7 c7 40 3e 07 8c 48 89 de 4c 89 f9 e8 b7 0d 7d fc 90 <0f> 0b 4c 89 f7 e8 9c 90 5f fd 43 80 3c 2c 00 74 08 4c 89 ff e8 5d RSP: 0018:ffffc90004c86700 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88805a2e6d00 RCX: ca4de137fdaf0200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff92000990d32 R08: ffffc90004c86487 R09: 1ffff92000990c90 R10: dffffc0000000000 R11: fffff52000990c91 R12: 1ffffffff1e43ce0 R13: dffffc0000000000 R14: ffffffff8f21e700 R15: ffffffff8f21e700 FS: 00007f5f41d706c0(0000) GS:ffff8881256f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f54201cb2f8 CR3: 00000000283be000 CR4: 00000000003526f0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del include/linux/list.h:237 [inline] flow_block_cb_setup_simple+0x62d/0x740 net/core/flow_offload.c:369 nft_block_offload_cmd net/netfilter/nf_tables_offload.c:397 [inline] nft_chain_offload_cmd+0x2d8/0x6e0 net/netfilter/nf_tables_offload.c:451 nft_flow_block_chain net/netfilter/nf_tables_offload.c:471 [inline] nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline] nft_flow_rule_offload_commit+0x485/0x1ce0 net/netfilter/nf_tables_offload.c:592 nf_tables_commit+0x80d/0xa400 net/netfilter/nf_tables_api.c:10985 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:576 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:649 [inline] nfnetlink_rcv+0x1c1b/0x27b0 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5f40f9a539 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5f41d70028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5f41205fa0 RCX: 00007f5f40f9a539 RDX: 000000000000c050 RSI: 0000200000000cc0 RDI: 0000000000000003 RBP: 00007f5f4102dee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5f41206038 R14: 00007f5f41205fa0 R15: 00007ffef1ed46d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 cb 90 5f fd 43 80 3c 2c 00 74 08 4c 89 ff e8 8c 20 82 fd 49 8b 17 48 c7 c7 40 3e 07 8c 48 89 de 4c 89 f9 e8 b7 0d 7d fc 90 <0f> 0b 4c 89 f7 e8 9c 90 5f fd 43 80 3c 2c 00 74 08 4c 89 ff e8 5d RSP: 0018:ffffc90004c86700 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88805a2e6d00 RCX: ca4de137fdaf0200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff92000990d32 R08: ffffc90004c86487 R09: 1ffff92000990c90 R10: dffffc0000000000 R11: fffff52000990c91 R12: 1ffffffff1e43ce0 R13: dffffc0000000000 R14: ffffffff8f21e700 R15: ffffffff8f21e700 FS: 00007f5f41d706c0(0000) GS:ffff8881257f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5420ea3ff8 CR3: 00000000283be000 CR4: 00000000003526f0