CVE-2023-52693

MEDIUM
Published May 17, 2024 Modified Dec 17, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: ACPI: video: check for error while searching for backlight device parent If acpi_get_parent() called in acpi_video_dev_register_backlight() fails, for example, because acpi_ut_acquire_mutex() fails inside acpi_get_parent), this can lead to incorrect (uninitialized) acpi_parent handle being passed to acpi_get_pci_dev() for detecting the parent pci device. Check acpi_get_parent() result and set parent device only in case of success. Found by Linux Verification Center (linuxtesting.org) with SVACE.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3 https://git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95 https://git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379c https://git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24af https://git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8 https://git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15f https://git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2f https://git.kernel.org/stable/c/ccd45faf4973746c4f30ea41eec864e5cf191099 https://git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3 https://git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95 https://git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379c https://git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24af https://git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8 https://git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15f https://git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2f https://git.kernel.org/stable/c/ccd45faf4973746c4f30ea41eec864e5cf191099

Frequently Asked Questions

What is CVE-2023-52693? +
In the Linux kernel, the following vulnerability has been resolved: ACPI: video: check for error while searching for backlight device parent If acpi_get_parent() called in acpi_video_dev_register_backlight() fails, for example, because acpi_ut_acquire_mutex() fails inside acpi_get_parent), this can lead to incorrect (uninitialized) acpi_parent handle being passed to acpi_get_pci_dev() for detecting the parent pci device. Check acpi_get_parent() result and set parent device only in case of success. Found by Linux Verification Center (linuxtesting.org) with SVACE. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2023-52693? +
CVE-2023-52693 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2023-52693? +
CVE-2023-52693 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52693? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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