CVE-2026-41509: Unchecked Sizeof Underflow To Memcpy
Unchecked subtraction of `sizeof` from a length variable before a memory copy operation. This can lead to integer underflow if the length is smaller than the `sizeof` value, causing an out-of-bounds read/write when passed to `memcpy` or `memmove`. Always validate the length before subtraction.
Cgreprules fetch cve-2026-41509-unchecked-sizeof-underflow-to-memcpy --engine opengrepDescription
Unchecked subtraction of `sizeof` from a length variable before a memory copy operation. This can lead to integer underflow if the length is smaller than the `sizeof` value, causing an out-of-bounds read/write when passed to `memcpy` or `memmove`. Always validate the length before subtraction.
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