Fix: HBO in CTiffImg::ReadLine()

[ChrisCoxArt]

Fixes #656

Pull Request Checklist

• Have you followed the guidelines in Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you built your Pull Request locally with the Build Instructions?
• Have you added or updated relevant tests?
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[xsscx]

Maintainer Review

2026-03-08 02:01:28 UTC

Git

[2026-03-08 02:01:28 UTC] ~/pr-659/iccDEV/Build (pr-659)$ git log --oneline --graph -1
* 8618025 (HEAD -> pr-659, origin/issue-656) use max size for strip to allocate buffer, just in case

Repro

cd ~
mkdir pr-659
cd pr-659
git clone https://github.com/InternationalColorConsortium/iccDEV.git
cd iccDEV
git fetch origin pull/659/head:pr-659
git checkout pr-659
cd Build
export CXX=clang++ && export CXXFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer -g -O1 -fprofile-arcs -ftest-coverage" && export LDFLAGS="-fsanitize=address,undefined -fprofile-arcs" && cmake Cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_ASAN=ON -DENABLE_UBSAN=ON -DENABLE_COVERAGE=ON
make -j32
wget https://github.com/xsscx/research/raw/refs/heads/main/test-profiles/Rec2020rgbSpectral.icc
wget https://github.com/xsscx/fuzz/raw/refs/heads/master/graphics/tif/hbo-CTiffImg-ReadLine-TiffImg_cpp-Line370.tiff
ASAN_OPTIONS=print_scariness=1 iccDEV/Build/Tools/IccApplyProfiles/iccApplyProfiles hbo-CTiffImg-ReadLine-TiffImg_cpp-Line370.tiff foo.tif 0 0 0 0 1 Rec2020rgbSpectral.icc 1
...
git log --oneline --graph -1
* 8618025 (HEAD -> pr-659, origin/issue-656) use max size for strip to allocate buffer, just in case
ASAN_OPTIONS=print_scariness=1 Tools/IccApplyProfiles/iccApplyProfiles hbo-CTiffImg-ReadLine-TiffImg_cpp-Line370.tiff foo.tif 0 0 0 0 1 Rec2020rgbSpectral.icc 1
TIFFReadDirectory: Warning, Bogus "StripByteCounts" field, ignoring and calculating from imagelength.
100%

[xsscx]

GHSA-wh2p-cm3r-7hm3