CVE-2024-56782

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

MEDIUM
5.5
CVSS Score
Published: January 8, 2025 at 05:51 PM UTC
Updated: June 17, 2026 at 08:12 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.8.6v < 6.12.56.8.6 ≤ v < 6.96.9 ≤ v < 6.12.56.9 ≤ v < 6.134af6a20d48342db472f9a865c037dfeea9104d0d6.8.66.999b572e6136eab69a8c91d72cf8595b256e304b5
Vendor states this is fixed in 4a49194f587a62d972b602e3e1a2c3cfe6567966 (fixed)
Vendor states this is fixed in e173bce05f7032a8b4964cfef82a4b7668f5f3af (fixed)
Vendor states this is fixed in 6.12.5 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4a49194f587a62d972b602e3e1a2c3cfe6567966
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e173bce05f7032a8b4964cfef82a4b7668f5f3af

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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