CVE-2026-72204
kernel: ntfs: centalize $INDEX_ROOT header validation
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · October 30, 2026
Description
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.
Statement
Red Hat rates this vulnerability as a Moderate impact because exploitation requires local access and the capability to mount a crafted filesystem, limiting the blast radius to a denial of service. Default enterprise deployments do not automatically mount untrusted NTFS volumes, substantially reducing exposure. Additionally, supported Red Hat Enterprise Linux releases do not contain the vulnerable driver code.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-1286 · Improper Validation of Syntactic Correctness of Input