Medium [CVE-2026-72204] centalize $INDEX_ROOT header validation
This medium-severity Red Hat Linux advisory covers CVE-2026-72204.
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Summary
In the Linux kernel, the following vulnerability has been resolved: ntfs: centalize $INDEX_ROOT header validation Add a dedicated helper to perform stricter validation of $INDEX_ROOT and use it for both directory inodes and named index inodes. This keeps the root size and header geometry checks consistent across both read paths.
A flaw was found in the Linux kernel's NTFS file system driver. This vulnerability arises from insufficient validation of the `$INDEX_ROOT` header, which is crucial for managing directory and file indexes.
An attacker could potentially craft a specially malformed NTFS file system. Processing this malformed file system could lead to file system corruption or a denial of service (DoS) condition, impacting system availability.
Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-1286.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 24 days 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 · medium-confidence parse· fetched 24 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 24 days ago·verify at source
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