In the Linux kernel, the following vulnerability has been resolved:
tpm_crb: Check ACPI_COMPANION() against NULL during probe
Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence.
Accordingly, add a requisite ACPI_COMPANION() check against NULL to the tpm_crb driver.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Aug 20, 2026 | Aug 15, 2026 |
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