From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 28 Jan 2014 01:07:13 +0000 (-0800)
Subject: kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()
X-Git-Tag: v3.14-rc1~79^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a19428e5c3f4f39c302cb97b847dfd23613145c1;p=pandora-kernel.git

kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()

vsnprintf() may let 'r' larger than sizeof(buf), in this case, if 'r' is
also less than "vmcoreinfo_max_size - vmcoreinfo_size" (left size of
destination buffer), next memcpy() will read the unexpected addresses.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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