CVE-2023-52693

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 556f02699d33c1f40b1b31bd25828ce08fa165d8affected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 1e3a2b9b4039bb4d136dca59fb31e06465e056f3affected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < c4e1a0ef0b4782854c9b77a333ca912b392bed2faffected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 3a370502a5681986f9828e43be75ce26c6ab24afaffected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 2124c5bc22948fc4d09a23db4a8acdccc7d21e95affected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 39af144b6d01d9b40f52e5d773e653957e6c379caffected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < 72884ce4e10417b1233b614bf134da852df0f15faffected
LinuxLinux9661e92c10a9775243c1ecb73373528ed8725a10 < ccd45faf4973746c4f30ea41eec864e5cf191099affected
LinuxLinux2.6.39affected
LinuxLinux0 < 2.6.39unaffected
LinuxLinux4.19.306 <= 4.19.*unaffected
LinuxLinux5.4.268 <= 5.4.*unaffected
LinuxLinux5.10.209 <= 5.10.*unaffected
LinuxLinux5.15.148 <= 5.15.*unaffected
LinuxLinux6.1.75 <= 6.1.*unaffected
LinuxLinux6.6.14 <= 6.6.*unaffected
LinuxLinux6.7.2 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References