netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'.
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: 0 PID: 7213 Comm: syz-executor.3 Not tainted 5.0.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:_tcf_ife_cleanup net/sched/act_ife.c:417 [inline]
RIP: 0010:tcf_ife_cleanup+0x67/0x3d0 net/sched/act_ife.c:436
Code: c1 ea 03 80 3c 02 00 0f 85 74 03 00 00 4d 8b bc 24 e8 00 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8d 77 e8 4c 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 40 03 00 00 49 8b 07 4c 89 ff 49 bf 00 00 00 00
RSP: 0018:ffff88808630ede0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88808c4c7700 RCX: 0000000000000000
RDX: 1ffff11011898efd RSI: 0000000000000004 RDI: ffff88808630ed48
RBP: ffff88808630ee30 R08: ffffed1010c61daa R09: ffffed1010c61da9
R10: ffffed1010c61da9 R11: 0000000000000003 R12: ffff88808c4c7700
R13: ffff88808c4c77e8 R14: ffffffffffffffe8 R15: 0000000000000000
FS:  00007f99ba6c5700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff46f3af00 CR3: 0000000094a00000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcf_action_cleanup+0x57/0x170 net/sched/act_api.c:127
 __tcf_action_put+0xc1/0x100 net/sched/act_api.c:143
 __tcf_idr_release+0x6a/0x90 net/sched/act_api.c:173
 tcf_idr_release include/net/act_api.h:160 [inline]
 tcf_ife_init+0x997/0x1420 net/sched/act_ife.c:611
 tcf_action_init_1+0x6b7/0x9c0 net/sched/act_api.c:915
 tcf_action_init+0x178/0x300 net/sched/act_api.c:970
 tcf_action_add+0xdb/0x360 net/sched/act_api.c:1355
 tc_ctl_action+0x2c0/0x401 net/sched/act_api.c:1407
 rtnetlink_rcv_msg+0x34f/0x8f0 net/core/rtnetlink.c:5192
 netlink_rcv_skb+0x13c/0x380 net/netlink/af_netlink.c:2485
 rtnetlink_rcv+0x10/0x20 net/core/rtnetlink.c:5210
 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
 netlink_unicast+0x43b/0x640 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x765/0xc40 net/netlink/af_netlink.c:1925
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xb5/0xf0 net/socket.c:661
 ___sys_sendmsg+0x647/0x950 net/socket.c:2260
 __sys_sendmsg+0xd9/0x180 net/socket.c:2298
 __do_sys_sendmsg net/socket.c:2307 [inline]
 __se_sys_sendmsg net/socket.c:2305 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2305
 do_syscall_64+0xd0/0x4d0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f99ba6c4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000000000000 RSI: 0000000020007300 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f99ba6c56d4
R13: 00000000004ca9fe R14: 00000000004e3e78 R15: 00000000ffffffff
Modules linked in:
---[ end trace 62a189dc796e009a ]---
RIP: 0010:_tcf_ife_cleanup net/sched/act_ife.c:417 [inline]
RIP: 0010:tcf_ife_cleanup+0x67/0x3d0 net/sched/act_ife.c:436
Code: c1 ea 03 80 3c 02 00 0f 85 74 03 00 00 4d 8b bc 24 e8 00 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8d 77 e8 4c 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 40 03 00 00 49 8b 07 4c 89 ff 49 bf 00 00 00 00
RSP: 0018:ffff88808630ede0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88808c4c7700 RCX: 0000000000000000
RDX: 1ffff11011898efd RSI: 0000000000000004 RDI: ffff88808630ed48
RBP: ffff88808630ee30 R08: ffffed1010c61daa R09: ffffed1010c61da9
R10: ffffed1010c61da9 R11: 0000000000000003 R12: ffff88808c4c7700
R13: ffff88808c4c77e8 R14: ffffffffffffffe8 R15: 0000000000000000
FS:  00007f99ba6c5700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff46f3af00 CR3: 0000000094a00000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400