linux-kernel - Re: KASAN: slab-out-of-bounds Write in bitmap_ip

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Message-ID: <0000000000008916f1059c91de99@google.com>
Date:   Mon, 20 Jan 2020 05:00:01 -0800
From:   syzbot <syzbot+24d0577de55b8b8f6975@...kaller.appspotmail.com>
To:     allison@...utok.net, arvid.brodin@...en.se, coreteam@...filter.org,
        davem@...emloft.net, dirk.vandermerwe@...ronome.com, fw@...len.de,
        gregkh@...uxfoundation.org, jakub.kicinski@...ronome.com,
        jeremy@...zel.net, kadlec@...filter.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, pablo@...filter.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: KASAN: slab-out-of-bounds Write in bitmap_ip_del

syzbot has bisected this bug to:

commit 0f93242d96ff5a04fe02c4978e8dddb014235971
Author: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date:   Tue Jul 9 02:53:08 2019 +0000

    nfp: tls: ignore queue limits for delete commands

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11f4e966e00000
start commit:   09d4f10a net: sched: act_ctinfo: fix memory leak
git tree:       net
final crash:    https://syzkaller.appspot.com/x/report.txt?x=13f4e966e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=15f4e966e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e
dashboard link: https://syzkaller.appspot.com/bug?extid=24d0577de55b8b8f6975
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1799c135e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=176b8faee00000

Reported-by: syzbot+24d0577de55b8b8f6975@...kaller.appspotmail.com
Fixes: 0f93242d96ff ("nfp: tls: ignore queue limits for delete commands")

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