Is CVE-2025-68376 in the CISA KEV catalog?

No. CVE-2025-68376 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-68376?

CVE-2025-68376 has a CVSS v3 base score of 6.4 (Moderate).

What is the EPSS score for CVE-2025-68376?

CVE-2025-68376 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-68376?

Upgrade linux on debian unstable to 6.17.13-1 or later. Fixes are available for 61 affected products.

CVE & CISA-KEV Catalog

CVE-2025-68376

MEDIUM

6.4

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: coresight: ETR: Fix ETR buffer use-after-free issue When ETR is enabled as CS_MODE_SYSFS, if the buffer size is changed and enabled again, currently sysfs_buf will point to the newly allocated memory(buf_new) and free the old memory(buf_old). But the etr_buf that is being used by the ETR remains pointed to buf_old, not updated to buf_new. In this case, it will result in a memory use-after-free issue. Fix this by checking ETR's mode before updating and releasing buf_old, if the mode is CS_MODE_SYSFS, then skip updating and releasing it.

How to fix

Remediation Available

linuxDebian

Fixed in:6.17.13-1CVE-2025-68376

linuxUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-awsUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-aws-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

linux-azureUbuntu

Fixed in:6.17.0-1010.10USN-8094-4

linux-azure-6.17Ubuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

linux-gcpUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-gcp-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

linux-hwe-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-6.17.0-1008-realtimeUbuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-6.17.0-1009-awsUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-aws-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-gcpUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-gcp-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-oracleUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-oracle-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1010-azureUbuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-6.17.0-1010-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-6.17.0-1017-oemUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-6.17.0-19-genericUbuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-6.17.0-19-generic-64kUbuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-awsUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-azureUbuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-azure-6.17Ubuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-gcpUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-genericUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64kUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64k-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-oem-24.04Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04aUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04bUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04cUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04dUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-6.17Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oracleUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-raspi-6.17Ubuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-realtimeUbuntu

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-realtime-6.17Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-realtime-hwe-24.04Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-virtualUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-virtual-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-oem-6.17Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-oracleUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-oracle-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

linux-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-realtimeUbuntu

Fixed in:6.17.0-1008.9USN-8094-2

linux-realtime-6.17Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

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 ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references3

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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 2025-12-29.