From 3d653bea2df085c728a1c8f775808e1e9249dff9 Mon Sep 17 00:00:00 2001 From: Cristy Date: Thu, 9 Apr 2026 10:39:06 -0400 Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-pwg5-6jfc-crvh --- coders/jp2.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/coders/jp2.c b/coders/jp2.c index 95971ce43b2..3703d10ff81 100644 --- a/coders/jp2.c +++ b/coders/jp2.c @@ -1103,10 +1103,12 @@ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image, flags=ParseGeometry(image_info->sampling_factor,&geometry_info); if ((flags & RhoValue) != 0) - parameters->subsampling_dx=(int) geometry_info.rho; + parameters->subsampling_dx=(int) MagickMax( + geometry_info.rho,1.0); parameters->subsampling_dy=parameters->subsampling_dx; if ((flags & SigmaValue) != 0) - parameters->subsampling_dy=(int) geometry_info.sigma; + parameters->subsampling_dy=(int) MagickMax( + geometry_info.sigma,1.0); } property=GetImageProperty(image,"comment",exception); if (property != (const char *) NULL)