Re: KASAN: slab-out-of-bounds Write in bitmap_ip_del

From: syzbot
Date: Fri Feb 21 2020 - 14:05:04 EST


syzbot suspects this bug was fixed by commit:

commit 32c72165dbd0e246e69d16a3ad348a4851afd415
Author: Kadlecsik JÃzsef <kadlec@xxxxxxxxxxxxxxxxx>
Date: Sun Jan 19 21:06:49 2020 +0000

netfilter: ipset: use bitmap infrastructure completely

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1226da7ee00000
start commit: d96d875e Merge tag 'fixes_for_v5.5-rc8' of git://git.kerne..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=cf8e288883e40aba
dashboard link: https://syzkaller.appspot.com/bug?extid=24d0577de55b8b8f6975
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14cddd76e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10f459c9e00000

If the result looks correct, please mark the bug fixed by replying with:

#syz fix: netfilter: ipset: use bitmap infrastructure completely

For information about bisection process see: https://goo.gl/tpsmEJ#bisection