syzbot suspects this issue was fixed by commit:
commit f123cffdd8fe8ea6c7fded4b88516a42798797d0
Author: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>
Date: Mon Nov 29 17:53:27 2021 +0000
net: netlink: af_netlink: Prevent empty skb by adding a check on len.
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=168acc95b00000
start commit: 990f227371a4 Merge tag 's390-5.9-2' of git://git.kernel.or..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=21f0d1d2df6d5fc
dashboard link: https://syzkaller.appspot.com/bug?extid=830c6dbfc71edc4f0b8f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101761e2900000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: net: netlink: af_netlink: Prevent empty skb by adding a check on len.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
