non-slab/vmalloc memory
list_del corruption. prev->next should be ffff88802a166900, but was ffffffff9000cec0. (prev=ffffffff9000cec0)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:62!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6822 Comm: syz.3.206 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 20 19 40 8c e8 37 28 fb fb 90 <0f> 0b 4c 89 e7 e8 dc c3 2e fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004ac6f58 EFLAGS: 00010286
RAX: 000000000000006d RBX: ffff88802a166900 RCX: 0000000000000000
RDX: 000000000000006d RSI: ffffffff81e82d99 RDI: fffff52000958ddc
RBP: ffffffff9000cec0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff9000cec0
R13: 0000000000000001 R14: ffffc90004ac7030 R15: ffffc90004ac7030
FS:  00007f196ef4f6c0(0000) GS:ffff8880d5de6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000600 CR3: 000000002309c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:246 [inline]
 list_del include/linux/list.h:260 [inline]
 flow_block_cb_setup_simple+0x36e/0xa20 net/core/flow_offload.c:367
 nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
 nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_commit+0x181/0x6a0 net/netfilter/nf_tables_offload.c:592
 nf_tables_commit+0x5f0/0x92e0 net/netfilter/nf_tables_api.c:10929
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec net/socket.c:775 [inline]
 __sock_sendmsg net/socket.c:790 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738
 __sys_sendmsg+0x160/0x210 net/socket.c:2770
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f196df9de59
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:00007f196ef4f028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f196e225fa0 RCX: 00007f196df9de59
RDX: 000000000000c050 RSI: 0000200000000cc0 RDI: 0000000000000003
RBP: 00007f196e033e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f196e226038 R14: 00007f196e225fa0 R15: 00007ffc280e8c78
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 20 19 40 8c e8 37 28 fb fb 90 <0f> 0b 4c 89 e7 e8 dc c3 2e fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004ac6f58 EFLAGS: 00010286
RAX: 000000000000006d RBX: ffff88802a166900 RCX: 0000000000000000
RDX: 000000000000006d RSI: ffffffff81e82d99 RDI: fffff52000958ddc
RBP: ffffffff9000cec0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff9000cec0
R13: 0000000000000001 R14: ffffc90004ac7030 R15: ffffc90004ac7030
FS:  00007f196ef4f6c0(0000) GS:ffff8880d5de6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f196dfeb540 CR3: 000000002309c000 CR4: 0000000000352ef0