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31 lines
1002 B
31 lines
1002 B
Index: tiff-4.0.3/tools/ppm2tiff.c
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===================================================================
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--- tiff-4.0.3.orig/tools/ppm2tiff.c 2013-06-23 10:36:50.779629492 -0400
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+++ tiff-4.0.3/tools/ppm2tiff.c 2013-06-23 10:36:50.775629494 -0400
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@@ -89,6 +89,7 @@
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int c;
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extern int optind;
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extern char* optarg;
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+ tmsize_t scanline_size;
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if (argc < 2) {
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fprintf(stderr, "%s: Too few arguments\n", argv[0]);
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@@ -237,8 +238,16 @@
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}
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if (TIFFScanlineSize(out) > linebytes)
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buf = (unsigned char *)_TIFFmalloc(linebytes);
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- else
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- buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
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+ else {
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+ scanline_size = TIFFScanlineSize(out);
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+ if (scanline_size != 0)
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+ buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
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+ else {
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+ fprintf(stderr, "%s: scanline size overflow\n",infile);
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+ (void) TIFFClose(out);
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+ exit(-2);
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+ }
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+ }
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if (resolution > 0) {
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TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution);
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TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution);
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