CVE-2024-36019 (GCVE-0-2024-36019)

Vulnerability from cvelistv5 – Published: 2024-05-30 14:59 – Updated: 2026-05-11 20:15
VLAI
Title
regmap: maple: Fix cache corruption in regcache_maple_drop()
Summary
In the Linux kernel, the following vulnerability has been resolved: regmap: maple: Fix cache corruption in regcache_maple_drop() When keeping the upper end of a cache block entry, the entry[] array must be indexed by the offset from the base register of the block, i.e. max - mas.index. The code was indexing entry[] by only the register address, leading to an out-of-bounds access that copied some part of the kernel memory over the cache contents. This bug was not detected by the regmap KUnit test because it only tests with a block of registers starting at 0, so mas.index == 0.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < 3af6c5ac72dc5b721058132a0a1d7779e443175e (git)
Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < 51c4440b9d3fd7c8234e6de9170a487c03506e53 (git)
Affected: f033c26de5a5734625d2dd1dc196745fae186f1b , < 00bb549d7d63a21532e76e4a334d7807a54d9f31 (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.26 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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