PATCH: Fix security leaks in btaudio

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 11 Jul 2003 19:11:14 +0100


diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.75/sound/oss/btaudio.c linux-2.5.75-ac1/sound/oss/btaudio.c
--- linux-2.5.75/sound/oss/btaudio.c 2003-07-10 21:06:05.000000000 +0100
+++ linux-2.5.75-ac1/sound/oss/btaudio.c 2003-07-11 16:28:57.000000000 +0100
@@ -328,8 +328,8 @@
if (cmd == SOUND_MIXER_INFO) {
mixer_info info;
memset(&info,0,sizeof(info));
- strlcpy(info.id,"bt878",sizeof(info.id));
- strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
+ strncpy(info.id,"bt878",sizeof(info.id));
+ strncpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
info.modify_counter = bta->mixcount;
if (copy_to_user((void *)arg, &info, sizeof(info)))
return -EFAULT;
@@ -338,8 +338,8 @@
if (cmd == SOUND_OLD_MIXER_INFO) {
_old_mixer_info info;
memset(&info,0,sizeof(info));
- strlcpy(info.id,"bt878",sizeof(info.id)-1);
- strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
+ strncpy(info.id,"bt878",sizeof(info.id)-1);
+ strncpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
if (copy_to_user((void *)arg, &info, sizeof(info)))
return -EFAULT;
return 0;
-
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