From: David Miller <davem@davemloft.net>
To: sasha.levin@oracle.com
Cc: ast@plumgrid.com, keescook@chromium.org,
hannes@stressinduktion.org, dborkman@redhat.com,
spender@grsecurity.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: bpf: correctly handle errors in sk_attach_filter()
Date: Sat, 13 Sep 2014 17:38:05 -0400 (EDT) [thread overview]
Message-ID: <20140913.173805.566607253438396851.davem@davemloft.net> (raw)
In-Reply-To: <1410581190-31922-1-git-send-email-sasha.levin@oracle.com>
From: Sasha Levin <sasha.levin@oracle.com>
Date: Sat, 13 Sep 2014 00:06:30 -0400
> Commit "net: bpf: make eBPF interpreter images read-only" has changed bpf_prog
> to be vmalloc()ed but never handled some of the errors paths of the old code.
>
> On error within sk_attach_filter (which userspace can easily trigger), we'd
> kfree() the vmalloc()ed memory, and leak the internal bpf_work_struct.
>
> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Applied.
prev parent reply other threads:[~2014-09-13 21:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-13 4:06 [PATCH] net: bpf: correctly handle errors in sk_attach_filter() Sasha Levin
2014-09-13 9:12 ` Daniel Borkmann
2014-09-13 9:24 ` Hannes Frederic Sowa
2014-09-13 21:38 ` David Miller [this message]
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