Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.39, < 4.19.306 |
| Debian | Debian Linux | 10.0 |
References
- https://git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3Patch
- https://git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95Patch
- https://git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379cPatch
- https://git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24afPatch
- https://git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8Patch
- https://git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15fPatch
- https://git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2fPatch
- https://git.kernel.org/stable/c/ccd45faf4973746c4f30ea41eec864e5cf191099Patch
- https://git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3Patch
- https://git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95Patch
- https://git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379cPatch
- https://git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24afPatch
- https://git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8Patch
- https://git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15fPatch
- https://git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2fPatch
FAQ
What is CVE-2023-52693?
CVE-2023-52693 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_ba...
How severe is CVE-2023-52693?
CVE-2023-52693 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52693?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.