Reject oversized Array2D allocations on ILP32#2540
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cary-ilm merged 2 commits intoJul 14, 2026
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Array2D computed sizeX * sizeY in 32-bit arithmetic before new[]. On ILP32, a 65537 x 65537 allocation wraps to a tiny buffer while decode still writes the full image. Validate the element count in uint64_t and reject dimensions whose product exceeds size_t before constructing or resizing Array2D. Addresses https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h56j-j82x-w3fp Addresses https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-wrw5-mm52-r3h8 Signed-off-by: Cary Phillips <cary@ilm.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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Array2D computed sizeX * sizeY in 32-bit arithmetic before new[]. On ILP32, a 65537 x 65537 allocation wraps to a tiny buffer while decode still writes the full image.
Validate the element count in uint64_t and reject dimensions whose product exceeds size_t before constructing or resizing Array2D.
Addresses https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h56j-j82x-w3fp
Addresses https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-wrw5-mm52-r3h8