firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
Summary
| CVE | CVE-2026-98363 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 09:18:30 UTC |
| Updated | 2026-10-06 09:18:30 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS 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. |
Risk And Classification
EPSS: 0.001720000 probability, percentile 0.059930000 (date 2026-10-06)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa e9887eeaa138c6b5697af3d2f7c71dc82407b154 git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa 1aadbef648e92ca642125f188f99b0a26628e3ba git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa 7daaa684097377b66b98a832de307688a7f3bbc7 git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa f17865332cc4ceaac846bcd7c28badbaedfabeff git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa cc563a59aded6f3b02d75dcc3c0bc5e90755d99e git | Not specified |
| CNA | Linux | Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa 32471d84a487c7fd74532bc96be56f8028cf4a3f git | Not specified |
| CNA | Linux | Linux | affected 4.4 | Not specified |
| CNA | Linux | Linux | unaffected 4.4 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.271 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.222 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.189 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.158 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.112 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.54 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.8 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc4 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.