Description
In the Linux kernel, the following vulnerability has been resolved:
orangefs: skip leading spaces before parsing client debug masks
orangefs_prepare_cdm_array() sizes each client debug keyword buffer with strcspn(cds_head, " "), but then parses the keyword with %s. The %s conversion skips leading whitespace, while strcspn() does not.
If a client debug entry starts with a space, the allocation can be sized for an empty keyword while sscanf() copies the following non-empty token. This can write past the end of the allocated keyword buffer.
Skip leading spaces before computing the keyword length so the allocation matches the string parsed by sscanf().
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 173bfd69696815bcf1c052f61cb69c26cca4e443; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 995f4d05589f87452a56672270af28918c8939c3; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 0ef38d53bca5ea1375fea0d3d11e9727df064b85; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < ce748ae1181d0daf5dd0d2d906d5c1cc328c153b; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 15d79c806231e62a7b746d3b42626810004e1b27; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 116d14f29a0524853c9316f32a2ac06cff5d4bf6; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < 1774c5b3713add32fe15ab0d3db4b73355f94e35; >= f7be4ee07fb72a516563bc2870ef41fa589a964a, < d410cd5303ec59c7cf23dd61423752ce8e9ecb59 |
| Linux | Linux | 4.6 |
References
- https://git.kernel.org/stable/c/0ef38d53bca5ea1375fea0d3d11e9727df064b85
- https://git.kernel.org/stable/c/116d14f29a0524853c9316f32a2ac06cff5d4bf6
- https://git.kernel.org/stable/c/15d79c806231e62a7b746d3b42626810004e1b27
- https://git.kernel.org/stable/c/173bfd69696815bcf1c052f61cb69c26cca4e443
- https://git.kernel.org/stable/c/1774c5b3713add32fe15ab0d3db4b73355f94e35
- https://git.kernel.org/stable/c/995f4d05589f87452a56672270af28918c8939c3
- https://git.kernel.org/stable/c/ce748ae1181d0daf5dd0d2d906d5c1cc328c153b
- https://git.kernel.org/stable/c/d410cd5303ec59c7cf23dd61423752ce8e9ecb59
Timeline
- Published
- Sep 11, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received