netdev - [syzbot] [wireless?] WARNING in ieee80211_link_info_change

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Message-ID: <000000000000acf9bb05f5c4848e@google.com>
Date:   Tue, 28 Feb 2023 07:47:51 -0800
From:   syzbot <syzbot+de87c09cc7b964ea2e23@...kaller.appspotmail.com>
To:     davem@...emloft.net, edumazet@...gle.com,
        johannes@...solutions.net, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com
Subject: [syzbot] [wireless?] WARNING in ieee80211_link_info_change_notify (2)

Hello,

syzbot found the following issue on:

HEAD commit:    489fa31ea873 Merge branch 'work.misc' of git://git.kernel...
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=1592ceacc80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cbfa7a73c540248d
dashboard link: https://syzkaller.appspot.com/bug?extid=de87c09cc7b964ea2e23
compiler:       Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16cf19a8c80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13bdf254c80000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8121ff3f8044/disk-489fa31e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ba8296ba1bf7/vmlinux-489fa31e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6459f50e23f3/bzImage-489fa31e.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de87c09cc7b964ea2e23@...kaller.appspotmail.com

netlink: 'syz-executor242': attribute type 27 has an invalid length.
------------[ cut here ]------------
wlan1: Failed check-sdata-in-driver check, flags: 0x0
WARNING: CPU: 0 PID: 5072 at net/mac80211/main.c:287 ieee80211_link_info_change_notify+0x1b6/0x220 net/mac80211/main.c:287
Modules linked in:
CPU: 0 PID: 5072 Comm: syz-executor242 Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
RIP: 0010:ieee80211_link_info_change_notify+0x1b6/0x220 net/mac80211/main.c:287
Code: e0 e4 b7 f7 49 8b 86 f8 08 00 00 49 81 c6 18 09 00 00 48 85 c0 4c 0f 45 f0 48 c7 c7 e0 57 0d 8c 4c 89 f6 89 ea e8 9a 2b 28 f7 <0f> 0b e9 3a ff ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff
RSP: 0018:ffffc90003c5f348 EFLAGS: 00010246
RAX: dbfb579b07df7200 RBX: 0000000002000000 RCX: ffff88807a840000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81536fb2 R09: ffffed101730515b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880763c0de0
R13: dffffc0000000000 R14: ffff88807c3cc000 R15: ffff88807c3ce230
FS:  0000555555a97300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001384 CR3: 00000000795c5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_set_mcast_rate+0x46/0x50 net/mac80211/cfg.c:2872
 rdev_set_mcast_rate net/wireless/rdev-ops.h:1220 [inline]
 nl80211_set_mcast_rate+0xb77/0xfb0 net/wireless/nl80211.c:11399
 genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]
 genl_rcv_msg+0xc33/0xf90 net/netlink/genetlink.c:1065
 netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2574
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x7c3/0x990 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0xa2a/0xd60 net/netlink/af_netlink.c:1942
 sock_sendmsg_nosec net/socket.c:722 [inline]
 sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x58f/0x890 net/socket.c:2504
 ___sys_sendmsg net/socket.c:2558 [inline]
 __sys_sendmsg+0x2ad/0x390 net/socket.c:2587
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5b7bb5d2a9
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:00007ffc05f7c888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5b7bb5d2a9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000c00000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000031
R13: 00007ffc05f7c8f0 R14: 00007ffc05f7c8e0 R15: 00007f5b7bbd7410
 </TASK>


---
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