From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Florian Westphal <fw@strlen.de>
Cc: netfilter-devel@vger.kernel.org,
syzbot+92968395eedbdbd3617d@syzkaller.appspotmail.com
Subject: Re: [PATCH nf-next] netfilter: cttimeout: fix slab-out-of-bounds read in cttimeout_net_exit
Date: Thu, 19 May 2022 22:40:07 +0200 [thread overview]
Message-ID: <YoarJyKPuoiP9F/K@salvia> (raw)
In-Reply-To: <20220517205036.25883-1-fw@strlen.de>
On Tue, May 17, 2022 at 10:50:36PM +0200, Florian Westphal wrote:
> syzbot reports:
> BUG: KASAN: slab-out-of-bounds in __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
> [..]
> list_del include/linux/list.h:148 [inline]
> cttimeout_net_exit+0x211/0x540 net/netfilter/nfnetlink_cttimeout.c:617
>
> No reproducer so far. Looking at recent changes in this area
> its clear that the free_head must not be at the end of the
> structure because nf_ct_timeout structure has variable size.
Applied, thanks
next prev parent reply other threads:[~2022-05-19 20:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-17 20:27 [syzbot] KASAN: slab-out-of-bounds Read in cttimeout_net_exit syzbot
2022-05-17 20:50 ` [PATCH nf-next] netfilter: cttimeout: fix slab-out-of-bounds read " Florian Westphal
2022-05-19 20:40 ` Pablo Neira Ayuso [this message]
2022-06-15 12:06 ` [syzbot] KASAN: slab-out-of-bounds Read " syzbot
2022-06-15 13:40 ` [PATCH nf] netfilter: cttimeout: fix slab-out-of-bounds read typo " Florian Westphal
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