CVE-2024-36019
regmap: maple: Fix cache corruption in regcache_maple_drop()
Description
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.
INFO
Published Date :
May 30, 2024, 3:15 p.m.
Last Modified :
Sept. 18, 2025, 3:54 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the affected kernel packages.
- Reboot the system after the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-36019.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-36019 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-36019
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-36019 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-36019 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 18, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.8.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.4 up to (excluding) 6.6.26 Added Reference Type CVE: https://git.kernel.org/stable/c/00bb549d7d63a21532e76e4a334d7807a54d9f31 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/00bb549d7d63a21532e76e4a334d7807a54d9f31 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/3af6c5ac72dc5b721058132a0a1d7779e443175e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3af6c5ac72dc5b721058132a0a1d7779e443175e Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/51c4440b9d3fd7c8234e6de9170a487c03506e53 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/51c4440b9d3fd7c8234e6de9170a487c03506e53 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/00bb549d7d63a21532e76e4a334d7807a54d9f31 Added Reference https://git.kernel.org/stable/c/3af6c5ac72dc5b721058132a0a1d7779e443175e Added Reference https://git.kernel.org/stable/c/51c4440b9d3fd7c8234e6de9170a487c03506e53 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 30, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/3af6c5ac72dc5b721058132a0a1d7779e443175e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/51c4440b9d3fd7c8234e6de9170a487c03506e53 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/00bb549d7d63a21532e76e4a334d7807a54d9f31 [No types assigned]