openbsd-ports/devel/simulavr/patches/patch-src_eeprom_c
2011-03-14 22:27:02 +00:00

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$OpenBSD: patch-src_eeprom_c,v 1.1 2011/03/14 22:27:02 jasper Exp $
Fix buffer overflow due to incorrect strncat() usage.
http://savannah.nongnu.org/bugs/?29049
--- src/eeprom.c.orig Mon Mar 14 23:22:50 2011
+++ src/eeprom.c Mon Mar 14 23:25:25 2011
@@ -416,7 +416,7 @@ eeprom_dump_core (EEProm *eeprom, FILE * f_core)
line[0] = '\0';
}
snprintf (buf, 80, "%02x ", storage_readb (eeprom->stor, i));
- strncat (line, buf, 80);
+ strncat (line, buf, 80 - strlen(line) - 1);
}
if (dup > 0)
{