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-rw-r--r--src/lib/formats/dsk_dsk.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/lib/formats/dsk_dsk.cpp b/src/lib/formats/dsk_dsk.cpp
index 5b019fb53d1..c90579b68d0 100644
--- a/src/lib/formats/dsk_dsk.cpp
+++ b/src/lib/formats/dsk_dsk.cpp
@@ -362,6 +362,12 @@ bool dsk_format::load(io_generic *io, uint32_t form_factor, floppy_image *image)
skip = 2;
}
int tracks = header[0x30];
+
+ int img_tracks, img_heads;
+ image->get_maximal_geometry(img_tracks, img_heads);
+ if (tracks > img_tracks || heads > img_heads)
+ return false;
+
uint64_t track_offsets[84*2];
int cnt =0;
if (!extendformat) {