Package: nvclock
Version: 0.8b2-1
Severity: important
Tags: patch, etch
If nvclock is used inside an environment where no $HOME is set, it
segfaults. This can be the case e.g. inside a script which exports
the GPU temperature via inetd and tcpd -- that's how we noticed it.
How to repeat:
$ env -i nvclock -T
$ env -i HOME=/tmp/ nvclock -T
Since nvclock just needs $HOME for creating a config file if it
doesn't exist, it can work fine without config file at all. So here's
a patch which ignores config files at all if $HOME isn't set and
therefore prevents this segfault:
----------------------------------------------------------------------
--- src/backend/config.c~ 2006-07-28 17:56:43.000000000 +0200
+++ src/backend/config.c 2007-07-16 20:47:29.000000000 +0200
@@ -270,7 +270,7 @@
if(!(home = getenv("HOME")))
{
- /* error */
+ return 1;
}
nvclock.path = malloc(strlen(home) + strlen("/.nvclock") +1);
----------------------------------------------------------------------
Works fine here.
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.22-amd64-1
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages nvclock depends on:
ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries
ii libx11-6 2:1.0.3-7 X11 client-side library
ii libxext6 1:1.0.1-2 X11 miscellaneous extension librar
nvclock recommends no packages.
-- no debconf information
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