platform/x86: dell-wmi-base: Fix handling of ultra performance key

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Summary

CVECVE-2026-93129
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:18:07 UTC
Updated2026-09-17 17:18:07 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix handling of ultra performance key The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields. Use the correct index for accessing the first data field to avoid a potential buffer overread.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 392c19faec6bf4cb72fb02322e2a61e198dd8f72 git Not specified
CNA Linux Linux affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 adfd6846bea13667ff28f8aaf00c32fbd69825ab git Not specified
CNA Linux Linux affected 5.16 Not specified
CNA Linux Linux unaffected 5.16 semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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