5.5

CVE-2026-23260

regmap: maple: free entry on mas_store_gfp() failure

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').
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.4 < 6.6.124
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.70
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.10
Linux ≫ Linux Kernel Version 6.19 Update rc1
Linux ≫ Linux Kernel Version 6.19 Update rc2
Linux ≫ Linux Kernel Version 6.19 Update rc3
Linux ≫ Linux Kernel Version 6.19 Update rc4
Linux ≫ Linux Kernel Version 6.19 Update rc5
Linux ≫ Linux Kernel Version 6.19 Update rc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.017
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806
Patch
https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350
Patch
https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a
Patch
https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8
Patch