CVEvulnerability
CVE-2026-93129
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/16a82add1918d3aae1e0b68c0a983b6fc64f5062 git.kernel.org
- https://git.kernel.org/stable/c/30674a7bbf20311a0c4edd5edb9526ef1eecc692 git.kernel.org
- https://git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72 git.kernel.org
- https://git.kernel.org/stable/c/ace1a687ea9ea70d17e3089ca173acfa1ec24412 git.kernel.org
- https://git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab git.kernel.org