avcodec/bmp_parser: Check fsize

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago · 43a4276c69
parent 37005e65eb
commit 43a4276c69
1 changed files with 2 additions and 1 deletions
--- a/libavcodec/bmp_parser.c
+++ b/libavcodec/bmp_parser.c
@ -53,7 +53,8 @@ restart:
            if (bpc->pc.frame_start_found == 0) {
                if ((state >> 48) == (('B' << 8) | 'M')) {
                    bpc->fsize = av_bswap32(state >> 16);
-                    bpc->pc.frame_start_found = 1;
+                    if (bpc->fsize > 17)
+                        bpc->pc.frame_start_found = 1;
                }
            } else if (bpc->pc.frame_start_found == 2+4+4) {
 //                 unsigned hsize = av_bswap32(state>>32);