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).
Affected versions
Linux kernel versions
4.6
and later are affected. Fixed in
6.18.53,
7.2
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-97499?
CVE-2026-97499 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.6 onward and has been patched in 6.18.53 and 7.2. CVE-2026-97499 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-97499?
Yes. CVE-2026-97499 has been patched. Fixed versions include 6.18.53 and 7.2. If you are running Linux kernel 4.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97499 actively exploited?
No. CVE-2026-97499 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.