non-slab/vmalloc memory list_del corruption. prev->next should be ffff888032ce9000, but was ffffffff8f1c78c0. (prev=ffffffff8f1c78c0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6249 Comm: syz.1.86 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b 27 26 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 fc d8 47 fd 49 8b 17 48 c7 c7 a0 08 05 8c 48 89 de 4c 89 f9 e8 d7 f0 4a fc 90 <0f> 0b 4c 89 f7 e8 3c 27 26 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 cd RSP: 0018:ffffc900030e66c0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888032ce9000 RCX: 55c1d77ef8622f00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff9200061cd2a R08: ffffc900030e63e7 R09: 1ffff9200061cc7c R10: dffffc0000000000 R11: fffff5200061cc7d R12: 1ffffffff1e38f18 R13: dffffc0000000000 R14: ffffffff8f1c78c0 R15: ffffffff8f1c78c0 FS: 00007f0d11e986c0(0000) GS:ffff8881258a7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000380 CR3: 000000007baf4000 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+0x293/0x660 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+0x40d/0x1b60 net/netfilter/nf_tables_offload.c:592 nf_tables_commit+0x69b/0xa1b0 net/netfilter/nf_tables_api.c:10925 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:574 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline] nfnetlink_rcv+0x1a4e/0x2520 net/netfilter/nfnetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:729 ____sys_sendmsg+0x505/0x830 net/socket.c:2617 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2671 __sys_sendmsg net/socket.c:2703 [inline] __do_sys_sendmsg net/socket.c:2708 [inline] __se_sys_sendmsg net/socket.c:2706 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2706 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0d10f8eba9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0d11e98038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0d111d5fa0 RCX: 00007f0d10f8eba9 RDX: 000000000000c050 RSI: 0000200000000cc0 RDI: 0000000000000003 RBP: 00007f0d11011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0d111d6038 R14: 00007f0d111d5fa0 R15: 00007fffc6176ea8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b 27 26 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 fc d8 47 fd 49 8b 17 48 c7 c7 a0 08 05 8c 48 89 de 4c 89 f9 e8 d7 f0 4a fc 90 <0f> 0b 4c 89 f7 e8 3c 27 26 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 cd RSP: 0018:ffffc900030e66c0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888032ce9000 RCX: 55c1d77ef8622f00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff9200061cd2a R08: ffffc900030e63e7 R09: 1ffff9200061cc7c R10: dffffc0000000000 R11: fffff5200061cc7d R12: 1ffffffff1e38f18 R13: dffffc0000000000 R14: ffffffff8f1c78c0 R15: ffffffff8f1c78c0 FS: 00007f0d11e986c0(0000) GS:ffff8881258a7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555589f31808 CR3: 000000007baf4000 CR4: 00000000003526f0