CVE-2026-98363
firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 6, 2026 |
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Affected Versions
Linux / Linux
8cb7cf56c9fe5412de238465b27ef35b4d2801aa < e9887eeaa138c6b5697af3d2f7c71dc82407b154 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 1aadbef648e92ca642125f188f99b0a26628e3ba 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 7daaa684097377b66b98a832de307688a7f3bbc7 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < f17865332cc4ceaac846bcd7c28badbaedfabeff 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < cc563a59aded6f3b02d75dcc3c0bc5e90755d99e 8cb7cf56c9fe5412de238465b27ef35b4d2801aa < 32471d84a487c7fd74532bc96be56f8028cf4a3f
Linux / Linux
4.4
References
git.kernel.org: https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154 git.kernel.org: https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba git.kernel.org: https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7 git.kernel.org: https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff git.kernel.org: https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 git.kernel.org: https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 git.kernel.org: https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e git.kernel.org: https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f