CVE-2026-97423
In the Linux kernel, the following vulnerability has been resolved: cxl/region: Validate partition index before array access construct_region() reads cxled->part and uses it to index cxlds->part[] without checking for a negative value. If the partition was never resolved, part remains at its initial value of -1, causing an out-of-bounds array access. Add a guard to return -EBUSY when part is negative. The check was dropped during a merge.
Affected versions
Linux kernel versions
6.15
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-2026-97423?
CVE-2026-97423 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.53 and 7.2. CVE-2026-97423 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-2026-97423?
Yes. CVE-2026-97423 has been patched. Fixed versions include 6.18.53 and 7.2. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97423 actively exploited?
No. CVE-2026-97423 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.