non-slab/vmalloc memory list_del corruption. prev->next should be ffff88802a469d00, but was ffffffff90acfd40. (prev=ffffffff90acfd40) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 13406 Comm: syz.2.2463 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 3b ff 28 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 fc 53 4b fd 49 8b 17 48 c7 c7 40 09 6e 8c 48 89 de 4c 89 f9 e8 b7 01 3a fc 90 <0f> 0b 4c 89 f7 e8 0c ff 28 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 cd RSP: 0018:ffffc90005856700 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88802a469d00 RCX: 1061c3700df1b500 RDX: ffffc900059a9000 RSI: 000000000000065a RDI: 000000000000065b RBP: 1ffff92000b0ad36 R08: ffff8880b8524a13 R09: 1ffff110170a4942 R10: dffffc0000000000 R11: ffffed10170a4943 R12: 1ffffffff2159fa8 R13: dffffc0000000000 R14: ffffffff90acfd40 R15: ffffffff90acfd40 FS: 0000000000000000(0000) GS:ffff888123baa000(0063) knlGS:00000000f5476b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000033819ff8 CR3: 0000000077946000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000a206 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:140 [inline] __list_del_entry include/linux/list.h:261 [inline] list_del include/linux/list.h:275 [inline] flow_block_cb_setup_simple+0x631/0x750 net/core/flow_offload.c:367 nft_block_offload_cmd net/netfilter/nf_tables_offload.c:397 [inline] nft_chain_offload_cmd+0x2b1/0x650 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+0x485/0x1d40 net/netfilter/nf_tables_offload.c:592 nf_tables_commit+0x1165/0xad60 net/netfilter/nf_tables_api.c:11006 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:574 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline] nfnetlink_rcv+0x1caf/0x28c0 net/netfilter/nfnetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline] netlink_unicast+0x8ef/0xa80 net/netlink/af_netlink.c:1364 netlink_sendmsg+0x7f0/0xb20 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] ____sys_sendmsg+0x54e/0x850 net/socket.c:2713 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2767 __sys_sendmsg+0x177/0x240 net/socket.c:2799 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x28b/0x6c0 arch/x86/entry/syscall_32.c:282 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:307 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf745ef1c Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 RSP: 002b:00000000f547650c EFLAGS: 00000206 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000080000cc0 RDX: 000000000000c050 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 3b ff 28 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 fc 53 4b fd 49 8b 17 48 c7 c7 40 09 6e 8c 48 89 de 4c 89 f9 e8 b7 01 3a fc 90 <0f> 0b 4c 89 f7 e8 0c ff 28 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 cd RSP: 0018:ffffc90005856700 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88802a469d00 RCX: 1061c3700df1b500 RDX: ffffc900059a9000 RSI: 000000000000065a RDI: 000000000000065b RBP: 1ffff92000b0ad36 R08: ffff8880b8524a13 R09: 1ffff110170a4942 R10: dffffc0000000000 R11: ffffed10170a4943 R12: 1ffffffff2159fa8 R13: dffffc0000000000 R14: ffffffff90acfd40 R15: ffffffff90acfd40 FS: 0000000000000000(0000) GS:ffff888123aaa000(0063) knlGS:00000000f5476b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000005841e21c CR3: 0000000077946000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 90 nop 1: 85 d2 test %edx,%edx 3: 74 0a je 0xf 5: 89 ce mov %ecx,%esi 7: 81 e6 ff 0f 00 00 and $0xfff,%esi d: 89 32 mov %esi,(%rdx) f: 85 c0 test %eax,%eax 11: 74 05 je 0x18 13: c1 e9 0c shr $0xc,%ecx 16: 89 08 mov %ecx,(%rax) 18: 31 c0 xor %eax,%eax 1a: 5e pop %rsi 1b: 5d pop %rbp 1c: c3 ret 1d: 90 nop 1e: 0f 1f 00 nopl (%rax) 21: 51 push %rcx 22: 52 push %rdx 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 ret 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 90 nop 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 58 pop %rax 3f: b8 .byte 0xb8