IPVS: ftp: loaded support on port[0] = 21
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BUG: KASAN: use-after-free in __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
Read of size 8 at addr ffff8880aa7590c8 by task syz-executor.2/12089

CPU: 0 PID: 12089 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433
 __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
 __list_del_entry include/linux/list.h:117 [inline]
 list_del_rcu include/linux/rculist.h:130 [inline]
 __nf_tables_abort+0x1fde/0x2ca0 net/netfilter/nf_tables_api.c:6660
 nf_tables_abort+0x13/0x30 net/netfilter/nf_tables_api.c:6770
 nfnetlink_rcv_batch+0xb66/0x1df0 net/netfilter/nfnetlink.c:496
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:545 [inline]
 nfnetlink_rcv+0x3b5/0x420 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ff1c40d80c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff1c2629168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff1c41f8050 RCX: 00007ff1c40d80c9
RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003
RBP: 00007ff1c4133ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc03f91ef R14: 00007ff1c2629300 R15: 0000000000022000

Allocated by task 12089:
 kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625
 kmalloc include/linux/slab.h:515 [inline]
 kzalloc include/linux/slab.h:709 [inline]
 nf_tables_newtable+0xad9/0x1620 net/netfilter/nf_tables_api.c:883
 nfnetlink_rcv_batch+0x10d5/0x1df0 net/netfilter/nfnetlink.c:435
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:545 [inline]
 nfnetlink_rcv+0x3b5/0x420 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 12098:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 nf_tables_table_destroy+0xee/0x130 net/netfilter/nf_tables_api.c:1062
 nft_commit_release net/netfilter/nf_tables_api.c:6277 [inline]
 nf_tables_commit_release net/netfilter/nf_tables_api.c:6317 [inline]
 nf_tables_commit+0x2aba/0x57f0 net/netfilter/nf_tables_api.c:6607
 nfnetlink_rcv_batch+0xe22/0x1df0 net/netfilter/nfnetlink.c:487
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:545 [inline]
 nfnetlink_rcv+0x3b5/0x420 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880aa7590c0
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 512-byte region [ffff8880aa7590c0, ffff8880aa7592c0)
The buggy address belongs to the page:
page:ffffea0002a9d640 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffffea0002aca548 ffffea0002a9a7c8 ffff88813bff0940
raw: 0000000000000000 ffff8880aa7590c0 0000000100000006 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880aa758f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8880aa759000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880aa759080: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
                                              ^
 ffff8880aa759100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880aa759180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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