Update of /cvsroot/alsa/alsa-kernel/isa/wavefront
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv18993
Modified Files:
wavefront_synth.c
Log Message:
fix possible buffer overflow in wavefront_download_firmware()
Index: wavefront_synth.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/isa/wavefront/wavefront_synth.c,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -r1.17 -r1.18
--- wavefront_synth.c 24 May 2004 13:25:30 -0000 1.17
+++ wavefront_synth.c 25 May 2004 12:10:48 -0000 1.18
@@ -1965,6 +1965,12 @@
break;
}
+ if (section_length < 0 || section_length > WF_SECTION_MAX) {
+ snd_printk ("invalid firmware section length %d\n",
+ section_length);
+ goto failure;
+ }
+
if (sys_read (fd, section, section_length) != section_length) {
snd_printk ("firmware section "
"read error.\n");
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