CVE-2026-68247

Summary

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

drm/i915/bios: range check LFP Data Block panel_type2

While the panel_type from LFP Data Block is range checked, panel_type2 is not. Add a few helpers for range checking, and use them to not only check panel_type2, but also improve clarity and correctness in the panel type selection.

Discovered using AI-assisted static analysis confirmed by Intel Product Security.

v2:

  • Fix commit message typo (Michał)
  • Add is_panel_type_pnp() (Ville)

(cherry picked from commit c9ebe5d2f25729d6cfbbb1235d640bf67f9275df)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6434cf630086eea2d091f122f5802582a05d9d1c < e7b5694645b03e80830dc141b59fc65aac693c70affected
LinuxLinux6434cf630086eea2d091f122f5802582a05d9d1c < 8b2da44446f9dce2ae50fee78bac2734d4277143affected
LinuxLinux6434cf630086eea2d091f122f5802582a05d9d1c < 8887b94d2fc93071bf6ff09c39d474510e6f582faffected
LinuxLinux6434cf630086eea2d091f122f5802582a05d9d1c < 2084503f2d087bf956198e7f6eb25b03a7049cb2affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc2 <= *unaffected

Weaknesses

References