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

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.

Classification

CVE ID: CVE-2024-56782

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.48% (scored less or equal to compared to others)

EPSS Date: 2025-02-06 (when was this score calculated)

References

https://git.kernel.org/stable/c/e173bce05f7032a8b4964cfef82a4b7668f5f3af
https://git.kernel.org/stable/c/4a49194f587a62d972b602e3e1a2c3cfe6567966

Timeline