CVE-2026-72200
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 | affected |
| Linux | Linux | 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 < 7fb64788812d137b37f6d8724e1e41c624c1e814 | affected |
| Linux | Linux | 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 < ec4f061f2219e0f0c6465d56d0380bf749235a53 | affected |
| Linux | Linux | 2.6.12 | affected |
| Linux | Linux | 7.1 | affected |
| Linux | Linux | 0 < 2.6.12 | unaffected |
| Linux | Linux | 6.9 < 7.1 | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
- https://git.kernel.org/stable/c/7fb64788812d137b37f6d8724e1e41c624c1e814
- https://git.kernel.org/stable/c/ec4f061f2219e0f0c6465d56d0380bf749235a53
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