Medium [CVE-2026-68450] free mapping node on duplicate reloc root insert
This medium-severity Red Hat Linux advisory covers CVE-2026-68450 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux for NVIDIA 26.
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Summary
free mapping node on duplicate reloc root insert. Red Hat rates this low (CVSS 5.5).
Weakness: CWE-772.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat Hardened Images; and 2 more.
Affected products named by the advisory: Red Hat OpenShift Container Platform 4; Red Hat package: kernel.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- There is no mitigation for this flaw. Systems not using btrfs filesystems are not affected in practice, as the vulnerable code path is only reached during btrfs block group relocation operations.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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