CVE-2026-93129

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

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 30, 2026
Reserved: Sep 17, 2026

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ef16f467393ca1a15ec8431fba5e67dd6071074eAffected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 30674a7bbf20311a0c4edd5edb9526ef1eecc692Affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ace1a687ea9ea70d17e3089ca173acfa1ec24412Affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 16a82add1918d3aae1e0b68c0a983b6fc64f5062Affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 392c19faec6bf4cb72fb02322e2a61e198dd8f72Affected 5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before adfd6846bea13667ff28f8aaf00c32fbd69825abAffected
LinuxLinux	5.16Affected before 5.16Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.57 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ef16f467393ca1a15ec8431fba5e67dd6071074eAffected
5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 30674a7bbf20311a0c4edd5edb9526ef1eecc692Affected
5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ace1a687ea9ea70d17e3089ca173acfa1ec24412Affected
5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 16a82add1918d3aae1e0b68c0a983b6fc64f5062Affected
5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 392c19faec6bf4cb72fb02322e2a61e198dd8f72Affected
5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before adfd6846bea13667ff28f8aaf00c32fbd69825abAffected

LinuxLinux

5.16Affected
before 5.16Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.57 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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