firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
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.
CVE-2026-98363
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98363
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "e9887eeaa138c6b5697af3d2f7c71dc82407b154",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "1aadbef648e92ca642125f188f99b0a26628e3ba",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "7daaa684097377b66b98a832de307688a7f3bbc7",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "f17865332cc4ceaac846bcd7c28badbaedfabeff",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "69ec03cd481973e4be44a7158ed6c0fa06a9a5f9",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "cc563a59aded6f3b02d75dcc3c0bc5e90755d99e",
"versionType": "git"
},
{
"status": "affected",
"version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa",
"lessThan": "32471d84a487c7fd74532bc96be56f8028cf4a3f",
"versionType": "git"
}
],
"programFiles": [
"drivers/firmware/arm_scpi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/firmware/arm_scpi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98363
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38441 · Revision 1
- Added to Heist Feed
- Publisher date