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CVE-2026-98363

unscored Published
NVD · CVE.org

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.

Fix

Microsoft's update · Critical

  • Release Notes — azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 · build 6.6.158.1-1

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-28.

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 2

  1. StatusReceived → PublishedNVD modified 2026-10-19 09:18
  2. First seenunscoredNVD modified 2026-10-19 10:18

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 8