CVE-2024-56782 ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()

What is CVE-2024-56782?

CVE-2024-56782 is a medium-severity vulnerability in Linux kernel, published on 8 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2024-56782?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-56782?

Apply the vendor's patch.

Is CVE-2024-56782 being exploited?

There is no known exploitation of CVE-2024-56782 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-55361, AZL-55376, BELL-CVE-2024-56782, DEBIAN-CVE-2024-56782, GHSA-f4vg-m386-rcvq, ROOT-OS-DEBIAN-11-CVE-2024-56782 and 3 more.