netlink: 4 bytes leftover after parsing attributes in process `syz-executor141'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7835 Comm: syz-executor141 Not tainted 4.19.59 #32
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nla_parse_nested /./include/net/netlink.h:765 [inline]
RIP: 0010:tcf_ife_init+0x221/0x17d0 /net/sched/act_ife.c:487
Code: fb 48 c7 c2 99 43 81 85 be 01 00 00 00 48 c7 c7 60 da 79 88 e8 c0 26 d1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 83
RSP: 0018:ffff888092b16ee0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11011eaad76
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282
RBP: ffff888092b17068 R08: ffff88808f556340 R09: 0000000000000001
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000001
R13: ffff88809b212000 R14: ffff888092b17040 R15: 0000000000000001
FS:  00000000025ae880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000092e75000 CR4: 00000000001406e0
Call Trace:
 tcf_action_init_1+0x804/0xc40 /net/sched/act_api.c:870
 tcf_action_init+0x23e/0x360 /net/sched/act_api.c:933
 tcf_action_add+0xe8/0x370 /net/sched/act_api.c:1313
 tc_ctl_action+0x37a/0x46f /net/sched/act_api.c:1365
 rtnetlink_rcv_msg+0x463/0xb00 /net/core/rtnetlink.c:4747
 netlink_rcv_skb+0x17d/0x460 /net/netlink/af_netlink.c:2454
 rtnetlink_rcv+0x1d/0x30 /net/core/rtnetlink.c:4765
 netlink_unicast_kernel /net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x537/0x720 /net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x8ae/0xd70 /net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec /net/socket.c:622 [inline]
 sock_sendmsg+0xd7/0x130 /net/socket.c:632
 ___sys_sendmsg+0x803/0x920 /net/socket.c:2115
 __sys_sendmsg+0x105/0x1d0 /net/socket.c:2153
 __do_sys_sendmsg /net/socket.c:2162 [inline]
 __se_sys_sendmsg /net/socket.c:2160 [inline]
 __x64_sys_sendmsg+0x78/0xb0 /net/socket.c:2160
 do_syscall_64+0xfd/0x620 /arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4401d9
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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffee5450fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401d9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a60
R13: 0000000000401af0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace a8a058cefd16ba4b ]---
RIP: 0010:nla_parse_nested /./include/net/netlink.h:765 [inline]
RIP: 0010:tcf_ife_init+0x221/0x17d0 /net/sched/act_ife.c:487
Code: fb 48 c7 c2 99 43 81 85 be 01 00 00 00 48 c7 c7 60 da 79 88 e8 c0 26 d1 fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 83
RSP: 0018:ffff888092b16ee0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11011eaad76
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282
RBP: ffff888092b17068 R08: ffff88808f556340 R09: 0000000000000001
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000001
R13: ffff88809b212000 R14: ffff888092b17040 R15: 0000000000000001
FS:  00000000025ae880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000092e75000 CR4: 00000000001406e0