CVE-2024-56782

ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()

State: Published
Severity: 5.5 Medium
Published: Jan 8, 2025
Updated: May 23, 2026
Reserved: Dec 29, 2024

Description

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

ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()

acpi_dev_hid_match() does not check for adev == NULL, dereferencing it unconditional.

Add a check for adev being NULL before calling acpi_dev_hid_match().

At the moment acpi_quirk_skip_serdev_enumeration() is never called with a controller_parent without an ACPI companion, but better safe than sorry.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	99b572e6136eab69a8c91d72cf8595b256e304b5 to before e173bce05f7032a8b4964cfef82a4b7668f5f3afAffected 99b572e6136eab69a8c91d72cf8595b256e304b5 to before 4a49194f587a62d972b602e3e1a2c3cfe6567966Affected 4af6a20d48342db472f9a865c037dfeea9104d0dAffected 6.8.6 to before 6.9Affected
LinuxLinux	6.9Affected before 6.9Not affected 6.12.5 through 6.12.*Not affected 6.13 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.