Is CVE-2026-23260 in the CISA KEV catalog?

No. CVE-2026-23260 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-23260?

CVE-2026-23260 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2026-23260?

CVE-2026-23260 has an EPSS score of 0.11% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23260?

Upgrade linux on debian 13 to 6.12.73-1 or later. Fixes are available for 122 affected products.

CVE & CISA-KEV Catalog

CVE-2026-23260

MEDIUM

5.5

CVSS v3

NVD

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').

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.73-1CVE-2026-23260

Fixed in:6.18.10-1CVE-2026-23260

linuxUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-awsUbuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-aws-fipsUbuntu

Fixed in:6.8.0-1055.58+fips1USN-8278-1

linux-azureUbuntu

Fixed in:6.8.0-1056.62USN-8278-2

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1059.65~22.04.1USN-8440-1

linux-azure-fipsUbuntu

Fixed in:6.8.0-1059.65+fips1USN-8393-1

linux-fipsUbuntu

Fixed in:6.8.0-116.116+fips1USN-8296-1

linux-gcpUbuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-gcp-fipsUbuntu

Fixed in:6.8.0-1058.61+fips1USN-8278-1

linux-gkeUbuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-gkeopUbuntu

Fixed in:6.8.0-1041.44USN-8278-1

linux-ibmUbuntu

Fixed in:6.8.0-1055.56USN-8278-1

linux-ibm-6.8Ubuntu

Fixed in:6.8.0-1055.56~22.04.1USN-8278-1

linux-image-6.8.0-1024-nvidia-tegraUbuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-6.8.0-1024-nvidia-tegra-rtUbuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-6.8.0-1032-xilinxUbuntu

Fixed in:6.8.0-1032.33USN-8499-1

linux-image-6.8.0-1041-gkeopUbuntu

Fixed in:6.8.0-1041.44USN-8278-1

linux-image-6.8.0-1054-gkeUbuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-6.8.0-1054-gke-64kUbuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-6.8.0-1054-nvidiaUbuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-6.8.0-1054-nvidia-64kUbuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-6.8.0-1054-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-6.8.0-1054-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-6.8.0-1055-awsUbuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-6.8.0-1055-aws-64kUbuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-6.8.0-1055-aws-fipsUbuntu

Fixed in:6.8.0-1055.58+fips1USN-8278-1

linux-image-6.8.0-1055-ibmUbuntu

Fixed in:6.8.0-1055.56~22.04.1USN-8278-1

Fixed in:6.8.0-1055.56USN-8278-1

linux-image-6.8.0-1056-azureUbuntu

Fixed in:6.8.0-1056.62USN-8278-2

linux-image-6.8.0-1056-raspiUbuntu

Fixed in:6.8.0-1056.60USN-8278-1

linux-image-6.8.0-1058-gcpUbuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-6.8.0-1058-gcp-64kUbuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-6.8.0-1058-gcp-fipsUbuntu

Fixed in:6.8.0-1058.61+fips1USN-8278-1

linux-image-6.8.0-1059-azureUbuntu

Fixed in:6.8.0-1059.65~22.04.1USN-8440-1

linux-image-6.8.0-1059-azure-fipsUbuntu

Fixed in:6.8.0-1059.65+fips1USN-8393-1

linux-image-6.8.0-116-fipsUbuntu

Fixed in:6.8.0-116.116+fips1USN-8296-1

linux-image-6.8.0-117-genericUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-6.8.0-117-generic-64kUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-6.8.0-117-lowlatencyUbuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-6.8.0-117-lowlatency-64kUbuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-6.8.0-2045-raspi-realtimeUbuntu

Fixed in:6.8.0-2045.46USN-8278-1

linux-image-6.8.1-1051-realtimeUbuntu

Fixed in:6.8.1-1051.52~22.04.1USN-8278-1

Fixed in:6.8.1-1051.52USN-8278-1

linux-image-aws-6.8Ubuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-aws-64k-6.8Ubuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-aws-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-aws-fipsUbuntu

Fixed in:6.8.0-1055.58+fips1USN-8278-1

linux-image-aws-fips-6.8Ubuntu

Fixed in:6.8.0-1055.58+fips1USN-8278-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1055.58USN-8278-1

linux-image-azureUbuntu

Fixed in:6.8.0-1059.65~22.04.1USN-8440-1

linux-image-azure-6.8Ubuntu

Fixed in:6.8.0-1059.65~22.04.1USN-8440-1

Fixed in:6.8.0-1056.62USN-8278-2

linux-image-azure-fipsUbuntu

Fixed in:6.8.0-1059.65+fips1USN-8393-1

linux-image-azure-fips-6.8Ubuntu

Fixed in:6.8.0-1059.65+fips1USN-8393-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1056.62USN-8278-2

linux-image-fipsUbuntu

Fixed in:6.8.0-116.116+fips1USN-8296-1

linux-image-fips-6.8Ubuntu

Fixed in:6.8.0-116.116+fips1USN-8296-1

linux-image-gcp-6.8Ubuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-gcp-64k-6.8Ubuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-gcp-fipsUbuntu

Fixed in:6.8.0-1058.61+fips1USN-8278-1

linux-image-gcp-fips-6.8Ubuntu

Fixed in:6.8.0-1058.61+fips1USN-8278-1

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1058.61USN-8278-1

linux-image-genericUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-generic-6.8Ubuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-generic-64k-6.8Ubuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-gke-6.8Ubuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-gke-64kUbuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-gke-64k-6.8Ubuntu

Fixed in:6.8.0-1054.60USN-8278-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1041.44USN-8278-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1041.44USN-8278-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1055.56USN-8278-1

linux-image-ibm-6.8Ubuntu

Fixed in:6.8.0-1055.56~22.04.1USN-8278-1

Fixed in:6.8.0-1055.56USN-8278-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1055.56USN-8278-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1055.56USN-8278-1

linux-image-intel-iot-realtimeUbuntu

Fixed in:6.8.1-1051.52USN-8278-1

linux-image-intel-iotgUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-kvmUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-lowlatency-6.8Ubuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

Fixed in:6.8.0-117.117.1USN-8278-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

Fixed in:6.8.0-1054.57USN-8289-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-nvidia-lowlatency-6.8Ubuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-nvidia-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-image-nvidia-tegraUbuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-nvidia-tegra-6.8Ubuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-nvidia-tegra-rtUbuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-nvidia-tegra-rt-6.8Ubuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-image-raspiUbuntu

Fixed in:6.8.0-1056.60USN-8278-1

linux-image-raspi-6.8Ubuntu

Fixed in:6.8.0-1056.60USN-8278-1

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2045.46USN-8278-1

linux-image-raspi-realtime-6.8Ubuntu

Fixed in:6.8.0-2045.46USN-8278-1

linux-image-realtimeUbuntu

Fixed in:6.8.1-1051.52USN-8278-1

linux-image-realtime-6.8.1Ubuntu

Fixed in:6.8.1-1051.52~22.04.1USN-8278-1

Fixed in:6.8.1-1051.52USN-8278-1

linux-image-realtime-hwe-22.04Ubuntu

Fixed in:6.8.1-1051.52~22.04.1USN-8278-1

linux-image-virtualUbuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-virtual-6.8Ubuntu

Fixed in:6.8.0-117.117USN-8278-1

linux-image-xilinxUbuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-image-xilinx-6.8Ubuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-image-xilinx-zynqmpUbuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-117.117.1USN-8278-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-117.117.1~22.04.1USN-8278-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1054.57USN-8289-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1054.57~22.04.1USN-8289-2

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1054.57.1USN-8289-1

linux-nvidia-tegraUbuntu

Fixed in:6.8.0-1024.24USN-8296-2

linux-raspiUbuntu

Fixed in:6.8.0-1056.60USN-8278-1

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2045.46USN-8278-1

linux-realtimeUbuntu

Fixed in:6.8.1-1051.52USN-8278-1

linux-realtime-6.8Ubuntu

Fixed in:6.8.1-1051.52~22.04.1USN-8278-1

linux-xilinxUbuntu

Fixed in:6.8.0-1032.33USN-8499-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.11%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch4

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-29.