CVE-2026-97499coresight: perf: Retrieve path and source from event data
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4 before 0f4cb08f30011b7625a4fba668fa5c36da5e6637; from 0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4 before f37bc31447c0ddafedb25e3c4a4f4e2284034247 | CNA record |
References
- https://git.kernel.org/stable/c/0f4cb08f30011b7625a4fba668fa5c36da5e6637
- https://git.kernel.org/stable/c/f37bc31447c0ddafedb25e3c4a4f4e2284034247
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.