PATCH: fix the security leak in dmasound

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 11 Jul 2003 19:12:18 +0100


'ra1
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.75/sound/oss/dmasound/dmasound_core.c linux-2.5.75-ac1/sound/oss/dmasound/dmasound_core.c
--- linux-2.5.75/sound/oss/dmasound/dmasound_core.c 2003-07-10 21:05:30.000000000 +0100
+++ linux-2.5.75-ac1/sound/oss/dmasound/dmasound_core.c 2003-07-11 16:30:15.000000000 +0100
@@ -351,8 +351,8 @@
case SOUND_MIXER_INFO:
{
mixer_info info;
- strlcpy(info.id, dmasound.mach.name2, sizeof(info.id));
- strlcpy(info.name, dmasound.mach.name2, sizeof(info.name));
+ strncpy(info.id, dmasound.mach.name2, sizeof(info.id));
+ strncpy(info.name, dmasound.mach.name2, sizeof(info.name));
info.modify_counter = mixer.modify_counter;
if (copy_to_user((int *)arg, &info, sizeof(info)))
return -EFAULT;
-
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