CVE-2026-23260
kernel: regmap: maple: free entry on mas_store_gfp() failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 18, 2026
Updated · June 28, 2026
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').
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE not specified