CVE-2025-68376 | coresight: ETR: Fix ETR buffer use-after-free issue

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.

Published: 2025-12-24 Last update: 2026-06-17 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2025-68376 is rated Low Risk (5.9/100): low exploitation likelihood (EPSS 0.16%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-68376

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.02% 0.16% +0.14%
2 2025-12-24 0.02%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-68376

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2025-68376

OS Trackers for CVE-2025-68376

vendor priority summary link
debian unimportant CVE-2025-68376 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2025-68376
redhat https://access.redhat.com/security/cve/CVE-2025-68376
suse medium CVE-2025-68376 severity moderate: SUSE including 116 source package names (13.2-9.1:libsqlite3-0-3.49.1-1.1, 2.1.3-6.31:libsqlite3-0-3.49.1-1.1, …), 493 product×package rows across 83 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (83 product lines)): Known Not Affected 297, Fixed 171, First Fixed 25. https://www.suse.com/security/cve/CVE-2025-68376/
ubuntu medium CVE-2025-68376 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1405 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1010, ignored 179, released 99, not-affected 79, needed 38. https://ubuntu.com/security/CVE-2025-68376

Affected software / configurations for CVE-2025-68376

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-68376

cvelogic Threat Intelligence