IPVS: ftp: loaded support on port[0] = 21
general protection fault, probably for non-canonical address 0xff3f3b3f3f3f3f3f: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xf9f9f9f9f9f9f9f8-0xf9f9f9f9f9f9f9ff]
CPU: 1 PID: 10038 Comm: syz-executor929 Not tainted 5.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcf_action_destroy+0x6a/0x150 net/sched/act_api.c:720
Code: 47 fb 83 c5 01 bf 20 00 00 00 48 83 c3 08 89 ee e8 7b 75 47 fb 83 fd 20 0f 84 ae 00 00 00 e8 fd 73 47 fb 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 ae 00 00 00 4c 8b 3b 4d 85 ff 0f 84 8b 00 00
RSP: 0018:ffffc90001c7f028 EFLAGS: 00010a06
RAX: 1f3f3f3f3f3f3f3f RBX: f9f9f9f9f9f9f9f9 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff862ab123 RDI: f9f9f9f9f9f9f9f9
RBP: 0000000000000000 R08: ffff888093848280 R09: ffffed1015ce7074
R10: ffffed1015ce7073 R11: ffff8880ae73839b R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000001c9f880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000280 CR3: 000000009a660000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcf_exts_destroy+0x42/0xc0 net/sched/cls_api.c:3001
 tcf_exts_change+0xf4/0x150 net/sched/cls_api.c:3059
 tcindex_set_parms+0xed8/0x1a00 net/sched/cls_tcindex.c:456
 tcindex_change+0x203/0x2e0 net/sched/cls_tcindex.c:518
 tc_new_tfilter+0xa59/0x20b0 net/sched/cls_api.c:2103
 rtnetlink_rcv_msg+0x810/0xad0 net/core/rtnetlink.c:5427
 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2478
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6b9/0x7d0 net/socket.c:2343
 ___sys_sendmsg+0x100/0x170 net/socket.c:2397
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2430
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440e79
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe3fdf3cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004a2650 RCX: 0000000000440e79
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007ffe3fdf3d00 R08: 0000000120080522 R09: 0000000120080522
R10: 0000000120080522 R11: 0000000000000246 R12: 00000000004a2650
R13: 0000000000402410 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 7efc989216d2e8bf ]---
RIP: 0010:tcf_action_destroy+0x6a/0x150 net/sched/act_api.c:720
Code: 47 fb 83 c5 01 bf 20 00 00 00 48 83 c3 08 89 ee e8 7b 75 47 fb 83 fd 20 0f 84 ae 00 00 00 e8 fd 73 47 fb 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 ae 00 00 00 4c 8b 3b 4d 85 ff 0f 84 8b 00 00
RSP: 0018:ffffc90001c7f028 EFLAGS: 00010a06
RAX: 1f3f3f3f3f3f3f3f RBX: f9f9f9f9f9f9f9f9 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff862ab123 RDI: f9f9f9f9f9f9f9f9
RBP: 0000000000000000 R08: ffff888093848280 R09: ffffed1015ce7074
R10: ffffed1015ce7073 R11: ffff8880ae73839b R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000001c9f880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 000000009a660000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400