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From: Daniel Borkmann <daniel@iogearbox.net>
To: Martynas Pumputis <m@lambda.lt>, netdev@vger.kernel.org
Cc: ast@kernel.org
Subject: Re: [PATCH v2] bpf: fix check of allowed specifiers in bpf_trace_printk
Date: Fri, 23 Nov 2018 21:57:48 +0100	[thread overview]
Message-ID: <85a08645-453b-78ad-e401-55d2894fa64a@iogearbox.net> (raw)
In-Reply-To: <20181123164326.28127-1-m@lambda.lt>

On 11/23/2018 05:43 PM, Martynas Pumputis wrote:
> A format string consisting of "%p" or "%s" followed by an invalid
> specifier (e.g. "%p%\n" or "%s%") could pass the check which
> would make format_decode (lib/vsprintf.c) to warn.
> 
> Reported-by: syzbot+1ec5c5ec949c4adaa0c4@syzkaller.appspotmail.com
> Signed-off-by: Martynas Pumputis <m@lambda.lt>

Applied to bpf, thanks!

      reply	other threads:[~2018-11-24  7:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-23 16:43 [PATCH v2] bpf: fix check of allowed specifiers in bpf_trace_printk Martynas Pumputis
2018-11-23 20:57 ` Daniel Borkmann [this message]

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