PT-2025-52912 · Linux+3 · Linux Kernel+3
Published
2025-11-05
·
Updated
2026-04-20
·
CVE-2025-68376
CVSS v2.0
7.7
High
| Vector | AV:A/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a use-after-free issue within the coresight ETR (Embedded Trace Register) component. Specifically, when ETR is enabled in CS MODE SYSFS and the buffer size is modified and re-enabled, the
etr buf pointer may continue to point to previously freed memory (buf old) instead of the newly allocated memory (buf new). This can lead to a memory use-after-free condition. The issue occurs when updating and releasing buf old while the ETR is in CS MODE SYSFS.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu