CVE-2026-97446

CVE CVE-2026-97446EUVD EUVD-2026-86059Published 2026-09-24T16:04:01.000ZLast changed 2026-09-25T12:44:24.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Fix NULL pointer dereference in acpi_ns_custom_package() acpi_ns_custom_package() unconditionally dereferences the first element of the package to read the _BIX version number, without checking for NULL: if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER) When firmware returns a _BIX package whose first element is an unresolvable reference, ACPICA evaluates that entry to NULL. acpi_ns_remove_null_elements() does not strip NULL entries for ACPI_PTYPE_CUSTOM packages (fixed-position format would break if elements were shifted), so acpi_ns_custom_package() sees the NULL and causes a crash. Add a NULL check for the first element (version field) before dereferencing it. The caller then receives AE_AML_OPERAND_TYPE instead of crashing.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 4.7; patch: 6.12.111; patch: 0; patch: 6.18.53; 7952d40240855932de01bbe81c02bf1416ec91d8 <3762c6c8ae5073892d7cec736cc54270c7c9ce90; 7952d40240855932de01bbe81c02bf1416ec91d8 <3cbf096a478f4fa03953f0685ad28c9c82ce67cb; patch: 7.2; 7952d40240855932de01bbe81c02bf1416ec91d8 <f8d14b7bb0063bbbd86c0e4d73edb8cea7b362bc

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.