CVE Catalog

CVE-2025-68370

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.12%

3th percentile - higher than 3% of all known CVEs

Summary

In the Linux kernel, the coresight tmc driver lacks the event handle in the path. The handle is essential for retrieving the AUX_EVENT of each CPU in perf mode. This causes an oops when using perf record with cs_etm.

Risk Assessment

An attacker could exploit this vulnerability to trigger an oops, potentially leading to system crashes or privilege escalation.

Recommendation

Apply the Linux kernel patch that adds the handle to the coresight_path.

Other vulnerabilities in Linux kernel

See all
Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: coresight: tmc: add the handle of the event to the path The handle is essential for retrieving the AUX_EVENT of each CPU and is required in perf mode. It has been added to the coresight_path so that dependent devices can access it from the path when needed. The existing bug can be reproduced with: perf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null Showing an oops as follows: Unable to handle kernel paging request at virtual address 000f6e84934ed19e Call trace: tmc_etr_get_buffer+0x30/0x80 [coresight_tmc] (P) catu_enable_hw+0xbc/0x3d0 [coresight_catu] catu_enable+0x70/0xe0 [coresight_catu] coresight_enable_path+0xb0/0x258 [coresight]

Vulnerability data from NVD (NIST) · CISA KEV · EPSS