CVEvulnerability
CVE-2026-72200
9.8 CRITICAL
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
References
- https://git.kernel.org/stable/c/6626fb859f4c4772f2f59751d23937716e03f98f git.kernel.org
- https://git.kernel.org/stable/c/7fb64788812d137b37f6d8724e1e41c624c1e814 git.kernel.org
- https://git.kernel.org/stable/c/7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 git.kernel.org
- https://git.kernel.org/stable/c/ec4f061f2219e0f0c6465d56d0380bf749235a53 git.kernel.org