CVE-2026-97423
cxl/region: Validate partition index before array access
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.53
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From b6faa9c613787b894913638a76030018f6d62d54 · fixed in 06322da06116f1ee52271dd4d84dc69580087df7; From b6faa9c613787b894913638a76030018f6d62d54 · fixed in 16329b510f76e5b824e05bf8add8b29850f1f16f
- Linux Linux
6.15
- KernelLinux
From 6.15.0 · fixed in 6.18.53