CVE-2026-23260 Details
Description
In the Linux kernel, the following vulnerability has been resolved: regmap: maple: free entry on mas_store_gfp() failure regcache_maple_write() allocates a new block ('entry') to merge adjacent ranges and then stores it with mas_store_gfp(). When mas_store_gfp() fails, the new 'entry' remains allocated and is never freed, leaking memory. Free 'entry' on the failure path; on success continue freeing the replaced neighbor blocks ('lower', 'upper').
A memory leak vulnerability has been identified in the Linux kernel's regmap subsystem, specifically within the maple regcache implementation. The issue arises in the 'regcache_maple_write' function, where a new block, referred to as 'entry', is allocated to merge adjacent ranges. This 'entry' is then intended to be stored using the 'mas_store_gfp()' function. However, if 'mas_store_gfp()' fails, the allocated 'entry' is not freed, leading to a memory leak. The vulnerability affects the Linux kernel stable tree.
The vulnerability has been addressed in the Linux kernel. Users can upgrade to the latest version to apply the fix.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a | kernel.org | Patch |
| https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.4, < 6.6.124 >= 6.7, < 6.12.70 >= 6.13, < 6.18.10 6.19 rc1 6.19 rc2 6.19 rc3 6.19 rc4 6.19 rc5 6.19 rc6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 29, 2026 | Initial Analysis | [email protected] |
| Mar 18, 2026 | New CVE Received | kernel.org |