firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
Published Oct 6, 2026
No CVSS score
EPSS 0.17%
Description
scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted any larger value from the SCP firmware. The shared-memory reply only holds MAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array and then sizes the allocated OPP table incorrectly (garbage OPPs / OOB). The missing upper bound dates back to the original SCPI DVFS support.
Reject zero and out-of-range counts in one check and return -EINVAL.
Affected products
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- Version StatusaffectedConstraints
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- Version 4.4StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<4.4
- Version 5.10.271StatusunaffectedConstraints<=5.10.*
- Version 5.15.222StatusunaffectedConstraints<=5.15.*
- Version 6.1.189StatusunaffectedConstraints<=6.1.*
- Version 6.12.112StatusunaffectedConstraints<=6.12.*
- Version 6.18.54StatusunaffectedConstraints<=6.18.*
- Version 6.6.158StatusunaffectedConstraints<=6.6.*
- Version 7.2.8StatusunaffectedConstraints<=7.2.*
- Version 7.3-rc4StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
No CWE recorded.
References (9)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-93348 Advisory
- https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901
- https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba
- https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f
- https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9
- https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7
- https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e
- https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154
- https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff
Change history (0)
No recorded changes yet.