linux-kernel - Re: [syzbot] WARNING: kmalloc bug in hash_netport

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <00000000000067c79605cb2720bb@google.com>
Date:   Sat, 04 Sep 2021 01:23:11 -0700
From:   syzbot <syzbot+3f5904753c2388727c6c@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, coreteam@...filter.org,
        davem@...emloft.net, eric.dumazet@...il.com, fw@...len.de,
        kadlec@...filter.org, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, syzkaller-bugs@...glegroups.com,
        torvalds@...ux-foundation.org, w@....eu
Subject: Re: [syzbot] WARNING: kmalloc bug in hash_netport_create

syzbot has bisected this issue to:

commit 7661809d493b426e979f39ab512e3adf41fbcc69
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Wed Jul 14 16:45:49 2021 +0000

    mm: don't allow oversized kvmalloc() calls

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=113125f5300000
start commit:   a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=133125f5300000
console output: https://syzkaller.appspot.com/x/log.txt?x=153125f5300000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1ac29107aeb2a552
dashboard link: https://syzkaller.appspot.com/bug?extid=3f5904753c2388727c6c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14581b33300000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13579a69300000

Reported-by: syzbot+3f5904753c2388727c6c@...kaller.appspotmail.com
Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

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