CVE-2026-89497
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().
How to fix
- Linux Linux173bfd69696815bcf1c052f61cb69c26cca4e443, 995f4d05589f87452a56672270af28918c8939c3, 0ef38d53bca5ea1375fea0d3d11e9727df064b85, ce748ae1181d0daf5dd0d2d906d5c1cc328c153b, 15d79c806231e62a7b746d3b42626810004e1b27, 116d14f29a0524853c9316f32a2ac06cff5d4bf6, 1774c5b3713add32fe15ab0d3db4b73355f94e35, d410cd5303ec59c7cf23dd61423752ce8e9ecb59 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 173bfd69696815bcf1c052f61cb69c26cca4e443, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 995f4d05589f87452a56672270af28918c8939c3, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 0ef38d53bca5ea1375fea0d3d11e9727df064b85, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < ce748ae1181d0daf5dd0d2d906d5c1cc328c153b, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 15d79c806231e62a7b746d3b42626810004e1b27, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 116d14f29a0524853c9316f32a2ac06cff5d4bf6, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < 1774c5b3713add32fe15ab0d3db4b73355f94e35, f7be4ee07fb72a516563bc2870ef41fa589a964a ≤ v < d410cd5303ec59c7cf23dd61423752ce8e9ecb59, 4.6 | 173bfd69696815bcf1c052f61cb69c26cca4e443, 995f4d05589f87452a56672270af28918c8939c3, 0ef38d53bca5ea1375fea0d3d11e9727df064b85, ce748ae1181d0daf5dd0d2d906d5c1cc328c153b, 15d79c806231e62a7b746d3b42626810004e1b27, 116d14f29a0524853c9316f32a2ac06cff5d4bf6, 1774c5b3713add32fe15ab0d3db4b73355f94e35, d410cd5303ec59c7cf23dd61423752ce8e9ecb59 |
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