CVE-2026-68247

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)

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68247.json"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

6434cf630086eea2d091f122f5802582a05d9d1c

Fixed

e7b5694645b03e80830dc141b59fc65aac693c70

Fixed

8b2da44446f9dce2ae50fee78bac2734d4277143

Fixed

8887b94d2fc93071bf6ff09c39d474510e6f582f

Fixed

2084503f2d087bf956198e7f6eb25b03a7049cb2

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68247.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

6.0.0

Fixed

6.12.101

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.42

Type: ECOSYSTEM
Events: Introduced

6.19.0

Fixed

7.1.6

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68247.json"