CVE-2026-89444

Summary

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: dell-wmi-sysman: Don't hex dump attribute security buffer

set_attribute() populates the security area of the BIOS attribute request buffer with the current admin password via populate_security_buffer(), then dumps the whole request buffer with print_hex_dump_bytes(). This can expose the plaintext admin password in the kernel log.

The same issue was fixed for the password attribute path by commit d1a196e0a6dc ("platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data"). Remove the remaining dump from the BIOS attribute path.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe8a60aa7404bfef37705da5607c97737073ac38d < ceeee18c927958b74a04b92cf084fc496fa21e8baffected
LinuxLinuxe8a60aa7404bfef37705da5607c97737073ac38d < 22222f92b0a5116eb4aac4be81e7b770adfa32eeaffected
LinuxLinuxe8a60aa7404bfef37705da5607c97737073ac38d < eb73b9d51490bec4f73ac6efdba5ac535fcfee74affected
LinuxLinuxe8a60aa7404bfef37705da5607c97737073ac38d < 83c80495e45eddf64c6525fb582d8db68f256b71affected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References