CVE-2025-68376

Description

In the Linux kernel, the following vulnerability has been resolved:coresight: ETR: Fix ETR buffer use-after-free issueWhen ETR is enabled as CS_MODE_SYSFS, if the buffer size is changedand enabled again, currently sysfs_buf will point to the newlyallocated memory(buf_new) and free the old memory(buf_old). But theetr_buf that is being used by the ETR remains pointed to buf_old, notupdated to buf_new. In this case, it will result in a memoryuse-after-free issue.Fix this by checking ETRs mode before updating and releasing buf_old,if the mode is CS_MODE_SYSFS, then skip updating and releasing it.

Risk Information

Base Score

6.4

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.025

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234