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From: Andreas Schwab <schwab@linux-m68k.org>
To: Siddhesh Poyarekar via Libc-alpha <libc-alpha@sourceware.org>
Cc: Siddhesh Poyarekar <siddhesh@sourceware.org>,  Qualys Security Advisory
 <qsa@qualys.com>
Subject: Re: [PATCH v4] getcwd: Set errno to ERANGE for size == 1
 (CVE-2021-3999)
References: <aa7dc3d1-f09d-8985-46ee-f493787a8a40@linaro.org>
 <20220121173831.2185053-1-siddhesh@sourceware.org>
X-Yow: Intra-mural sports results are filtering through th' plumbing...
Date: Fri, 21 Jan 2022 18:59:35 +0100
In-Reply-To: <20220121173831.2185053-1-siddhesh@sourceware.org> (Siddhesh
 Poyarekar via Libc-alpha's message of "Fri, 21 Jan 2022 23:08:31
 +0530")
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On Jan 21 2022, Siddhesh Poyarekar via Libc-alpha wrote:

> +static int
> +recv_fd (const int sock)
> +{
> +  struct msghdr msg;
> +  union
> +    {
> +      struct cmsghdr hdr;
> +      char buf[CMSG_SPACE(sizeof(int))];
> +    } cmsgbuf;

Zero-init like in send_fd.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."