CVE-2026-89497

orangefs: skip leading spaces before parsing client debug masks

State: Published
Severity: 7.8 High
Published: Sep 11, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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().

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f7be4ee07fb72a516563bc2870ef41fa589a964a to before 173bfd69696815bcf1c052f61cb69c26cca4e443Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before 995f4d05589f87452a56672270af28918c8939c3Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before 0ef38d53bca5ea1375fea0d3d11e9727df064b85Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before ce748ae1181d0daf5dd0d2d906d5c1cc328c153bAffected f7be4ee07fb72a516563bc2870ef41fa589a964a to before 15d79c806231e62a7b746d3b42626810004e1b27Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before 116d14f29a0524853c9316f32a2ac06cff5d4bf6Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before 1774c5b3713add32fe15ab0d3db4b73355f94e35Affected f7be4ee07fb72a516563bc2870ef41fa589a964a to before d410cd5303ec59c7cf23dd61423752ce8e9ecb59Affected
LinuxLinux	4.6Affected before 4.6Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

f7be4ee07fb72a516563bc2870ef41fa589a964a to before 173bfd69696815bcf1c052f61cb69c26cca4e443Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before 995f4d05589f87452a56672270af28918c8939c3Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before 0ef38d53bca5ea1375fea0d3d11e9727df064b85Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before ce748ae1181d0daf5dd0d2d906d5c1cc328c153bAffected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before 15d79c806231e62a7b746d3b42626810004e1b27Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before 116d14f29a0524853c9316f32a2ac06cff5d4bf6Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before 1774c5b3713add32fe15ab0d3db4b73355f94e35Affected
f7be4ee07fb72a516563bc2870ef41fa589a964a to before d410cd5303ec59c7cf23dd61423752ce8e9ecb59Affected

LinuxLinux

4.6Affected
before 4.6Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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