fix(jxl): guard corrupt basic-info dimensions early#5305
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Run check_open on JXL basic-info dimensions/channels before decode output allocation to prevent oversized allocation paths on malformed input. Also update ref output for libjxl 0.12.0. Assisted-by: GitHub Copilot / GPT-5.3-Codex Signed-off-by: Larry Gritz <lg@larrygritz.com>
jessey-git
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Jul 8, 2026
| if (!check_open(earlyspec, { 0, (1 << 30) - 1, 0, (1 << 30) - 1, 0, | ||
| 1, 0, 4099 })) { | ||
| return false; | ||
| } |
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Do we need the other check_open call below this still? It seems like every file is going to hit this JXL_DEC_BASIC_INFO conditional block and fill in the info struct.
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Quite right. I made an amendment.
missing basic info. Signed-off-by: Larry Gritz <lg@larrygritz.com>
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Run check_open on JXL basic-info dimensions/channels before decode output allocation to prevent oversized allocation paths on malformed input.
Also update ref output for libjxl 0.12.0.
Assisted-by: GitHub Copilot / GPT-5.3-Codex