From: Jakub Kicinski <kuba@kernel.org>
To: Eric Dumazet <edumazet@google.com>
Cc: syzbot <syzbot+65bb09a7208ce3d4a633@syzkaller.appspotmail.com>,
Petr Machata <petrm@nvidia.com>,
davem@davemloft.net, dsahern@kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
pabeni@redhat.com, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] kernel BUG in __nla_validate_parse
Date: Sat, 9 Mar 2024 10:40:54 -0800 [thread overview]
Message-ID: <20240309104054.5f058be3@kernel.org> (raw)
In-Reply-To: <CANn89iKLAOJ+HG_y7M27-tx+9HSLUyDaf_NtrJMjs2bZ52KZbA@mail.gmail.com>
On Sat, 9 Mar 2024 16:25:18 +0100 Eric Dumazet wrote:
> On Sat, Mar 9, 2024 at 4:13 PM syzbot
> > ..
> Petr, can you take a look ?
>
> Thanks !
>
>
> commit 2118f9390d83cf942de8b34faf3d35b54f9f4eee
> Author: Petr Machata <petrm@nvidia.com>
> Date: Wed Mar 6 13:49:15 2024 +0100
>
> net: nexthop: Adjust netlink policy parsing for a new attribute
Yeah
+static const struct nla_policy rtm_nh_policy_del[] = {
+ [NHA_ID] = { .type = NLA_U32 },
+};
+ err = nlmsg_parse(nlh, sizeof(struct nhmsg), tb, NHA_MAX,
+ rtm_nh_policy_del, extack);
The policy size must be >= max_attr (NHA_MAX).
next prev parent reply other threads:[~2024-03-09 18:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-09 15:13 [syzbot] [net?] kernel BUG in __nla_validate_parse syzbot
2024-03-09 15:25 ` Eric Dumazet
2024-03-09 18:40 ` Jakub Kicinski [this message]
2024-03-09 20:56 ` David Ahern
2024-03-09 16:02 ` syzbot
2024-03-10 5:44 ` syzbot
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