syzbot

netlink: 20 bytes leftover after parsing attributes in process `syz-executor401'.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8428 at net/mac80211/rate.c:282 ieee80211_check_rate_mask+0x18f/0x3a0 net/mac80211/rate.c:282
Modules linked in:
CPU: 1 PID: 8428 Comm: syz-executor401 Not tainted 5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_check_rate_mask+0x18f/0x3a0 net/mac80211/rate.c:282
Code: 44 89 e8 44 21 e0 74 26 e8 9e 02 96 f8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 8a 02 96 f8 0f 0b eb e8 e8 81 02 96 f8 <0f> 0b eb df 0f 1f 44 00 00 e8 73 02 96 f8 48 81 c3 60 06 00 00 48
RSP: 0018:ffffc90000ec7860 EFLAGS: 00010293
RAX: ffffffff88e1c47f RBX: ffff8880136c4bc0 RCX: ffff88801f281bc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888028b53390 R08: ffffffff88e1c3b7 R09: ffffffff88e387cc
R10: 0000000000000002 R11: ffff88801f281bc0 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888028b50c80
FS:  0000000001d71300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 0000000021654000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_change_bss+0x420/0x8c0 net/mac80211/cfg.c:2317
 rdev_change_bss net/wireless/rdev-ops.h:394 [inline]
 nl80211_set_bss+0x765/0xa50 net/wireless/nl80211.c:7091
 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0xe4e/0x1280 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2345
 ___sys_sendmsg net/socket.c:2399 [inline]
 __sys_sendmsg+0x2bf/0x370 net/socket.c:2432
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x440939
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe308428d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000031 RCX: 0000000000440939
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffe30842908
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe30842930
R13: 00007ffe30842922 R14: 00000000004b7430 R15: 00000000004b73c0