CVE-2026-98363

firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS

State: Published
Severity: Not scored
Published: Oct 6, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before e9887eeaa138c6b5697af3d2f7c71dc82407b154Affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 1aadbef648e92ca642125f188f99b0a26628e3baAffected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 7daaa684097377b66b98a832de307688a7f3bbc7Affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before f17865332cc4ceaac846bcd7c28badbaedfabeffAffected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901Affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9Affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before cc563a59aded6f3b02d75dcc3c0bc5e90755d99eAffected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 32471d84a487c7fd74532bc96be56f8028cf4a3fAffected
LinuxLinux	4.4Affected before 4.4Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.112 through 6.12.Not affected 6.18.54 through 6.18.Not affected 7.2.8 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before e9887eeaa138c6b5697af3d2f7c71dc82407b154Affected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 1aadbef648e92ca642125f188f99b0a26628e3baAffected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 7daaa684097377b66b98a832de307688a7f3bbc7Affected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before f17865332cc4ceaac846bcd7c28badbaedfabeffAffected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901Affected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9Affected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before cc563a59aded6f3b02d75dcc3c0bc5e90755d99eAffected
8cb7cf56c9fe5412de238465b27ef35b4d2801aa to before 32471d84a487c7fd74532bc96be56f8028cf4a3fAffected

LinuxLinux

4.4Affected
before 4.4Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.112 through 6.12.*Not affected
6.18.54 through 6.18.*Not affected
7.2.8 through 7.2.*Not affected
7.3 and laterNot affected

References

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