CVE-2026-23260
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
Summary
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').
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350Patch
- https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806Patch
- https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602aPatch
- https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8Patch