On Tue, 21 Dec 2021 at 21:03, syzbot <syzbot+830c6dbfc71edc4f0b8f@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > 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 Looks reasonable, let's close the bug: #syz fix: net: netlink: af_netlink: Prevent empty skb by adding a check on len.