In the Linux kernel, the following vulnerability has been resolved: ntfs: detect mapping-pairs LCN accumulator overflow The NTFS mapping-pairs parser accumulates relative LCN deltas in a signed integer. A corrupted attribute can drive that addition past the representable range. One corrupt runlist shape sets the accumulated LCN to S64_MAX and then adds a delta of 1 in the next mapping-pairs entry. Signed overflow is undefined and can turn an invalid runlist into a different set of physical clusters. Check the LCN addition for overflow before storing the next run.

A flaw was found in the Linux kernel's NTFS mapping-pairs parser. A corrupted attribute can cause a signed integer overflow when processing Logical Cluster Number (LCN) deltas. This overflow leads to undefined behavior, which may result in the system incorrectly interpreting file system structures. This could potentially lead to data corruption or unauthorized data access.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-72200 https://nvd.nist.gov/vuln/detail/CVE-2026-72200 https://lore.kernel.org/linux-cve-announce/2026081543-CVE-2026-72200-f14c@gregkh/T