CVE-2026-97499

In the Linux kernel, the following vulnerability has been resolved: coresight: perf: Retrieve path and source from event data ETM perf callbacks currently use the per-CPU csdev_src pointer, which can race with updates during device registration and unregistration. The AUX setup already builds and stores the path in the event data. Use this path to retrieve the source instead of csdev_src to avoid the race. Export coresight_get_source() and add etm_event_get_ctxt_path() to retrieve the context's path and its source with READ_ONCE() / WRITE_ONCE() accessors. Give the comments to explain why this approach is safe when pause or resume callbacks preempt the disable callback (e.g. via NMI).

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0f4cb08f30011b7625a4fba668fa5c36da5e6637
https://git.kernel.org/stable/c/f37bc31447c0ddafedb25e3c4a4f4e2284034247

Configurations

No configuration.

History

24 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-24 17:17

Updated : 2026-09-28 06:16

NVD link : CVE-2026-97499

Mitre link : CVE-2026-97499

CVE.ORG link : CVE-2026-97499

JSON object : View

Products Affected

No product.

CWE

No CWE.

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