From: Daniel Mack <daniel@zonque.org>
Date: Mon, 12 Oct 2015 12:44:26 +0000 (+0200)
Subject: sd-daemon: wipe out memory before using CMSG_NXTHDR()
X-Git-Tag: v228.1~1^2~49
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=dfbbceed38d59315271e2a7397c1f387a64c451b;hp=dfbbceed38d59315271e2a7397c1f387a64c451b

sd-daemon: wipe out memory before using CMSG_NXTHDR()

CMSG_NXTHDR() checks for cmsg->cmsg_len *after* it increased the pointer.
While this makes sense for parsing received messages, that's a pitfall
for code crafting messages with this macro.

Wipe out the allocated memory to fix this.
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