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CVE-2025-21785 is an out-of-bounds write vulnerability in the Linux kernel ARM64 cacheinfo subsystem. The cache-information discovery and population loop bounded its cacheinfo-array index by cache level, but a single cache level may expose separate instruction-cache and data-cache leaves. Consequently, the loop could populate more array entries than its level-based accounting permitted. The correction advances the array index for every populated cache leaf rather than once per populated cache level.
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Linux kernel ARM64 cacheinfo out-of-bounds write vulnerability.
An out-of-bounds write vulnerability in the Linux kernel ARM64 cacheinfo array handling.
An out-of-bounds write vulnerability in the Linux kernel arm64 cacheinfo subsystem. Cache-information population could exceed the cacheinfo array bounds when cache levels expose separate data and instruction caches; the fix increments the index for every populated cache leaf rather than per populated level.
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Cross-references every affected SKU, including bundled OEM variants.
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