Medium [CVE-2026-72470] resize log->one_page_buf when adopting on-disk page size
This medium-severity Red Hat Linux advisory covers CVE-2026-72470.
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Summary
A flaw was found in the Linux kernel's NTFS3 file system driver. This vulnerability occurs when a user attempts to mount a specially crafted or dirty NTFS volume where the log page size on disk is larger than the buffer initially allocated by the kernel.
This mismatch leads to a buffer overflow, a condition where a program attempts to write data beyond the boundaries of a fixed-length buffer, resulting in memory corruption. A local attacker could exploit this to potentially cause a denial of service (DoS) on the system.
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-131.
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 3 hours 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 3 hours 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 3 hours ago·verify at source
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