targa: prevent integer overflow in bufsize check.

14 years ago · 78e2380a6d
parent b3db9ceef1
commit 78e2380a6d
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/targa.c
+++ b/libavcodec/targa.c
@ -34,7 +34,7 @@ typedef struct TargaContext {
 } TargaContext;

 #define CHECK_BUFFER_SIZE(buf, buf_end, needed, where) \
-    if(buf + needed > buf_end){ \
+    if(needed > buf_end - buf){ \
        av_log(avctx, AV_LOG_ERROR, "Problem: unexpected end of data while reading " where "\n"); \
        return -1; \
    } \