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| author | Robin Watts <robin.watts@artifex.com> | 2017-02-28 17:36:00 +0000 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2017-03-01 17:26:34 +0000 |
| commit | f8c0d4e78f75de95b0d74210b3e929abef6f3a60 (patch) | |
| tree | 3ccbf148ad669ba1b1c178ec4138f87190b47f16 /jbig2dec/jbig2_image.c | |
| parent | bbb2b961388b028d7d9d8f6454ced8192ad513c1 (diff) | |
| download | ghostpdl-f8c0d4e78f75de95b0d74210b3e929abef6f3a60.tar.gz | |
Add sanity check on image sizes.
Inspired by bug 697395, but doesn't actually solve any problem
seen in that bug (or at least, not that I can see, as I can't
reproduce the problem with file2).
Diffstat (limited to 'jbig2dec/jbig2_image.c')
| -rw-r--r-- | jbig2dec/jbig2_image.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/jbig2dec/jbig2_image.c b/jbig2dec/jbig2_image.c index 00f966b4c..661d0a5a7 100644 --- a/jbig2dec/jbig2_image.c +++ b/jbig2dec/jbig2_image.c @@ -38,6 +38,13 @@ jbig2_image_new(Jbig2Ctx *ctx, uint32_t width, uint32_t height) uint32_t stride; int64_t check; + if (width == 0 || height == 0) { + jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, + "zero width (%d) or height (%d) in jbig2_image_new", + width, height); + return NULL; + } + image = jbig2_new(ctx, Jbig2Image, 1); if (image == NULL) { jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "could not allocate image structure in jbig2_image_new"); |