CVE-2024-53150: 
Linux Kernel vulnerability analysis and mitigation

CVE-2024-53150 is a vulnerability discovered in the Linux kernel's ALSA USB-audio driver. The issue was identified when the driver code failed to properly check the bLength of each descriptor while traversing clock descriptors. The vulnerability was disclosed on December 24, 2024, affecting multiple versions of the Linux kernel from version 5.4 up to versions before 6.12.2 (NVD).

The vulnerability is classified as an out-of-bounds read (CWE-125) in the USB-audio driver. When a device provides a bogus descriptor with a shorter bLength, the driver might experience out-of-bounds reads. The issue has been assigned a CVSS v3.1 base score of 7.1 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H, indicating local access required with low attack complexity (NVD).

The vulnerability could lead to information disclosure through out-of-bounds reads in the kernel's USB-audio driver. This could potentially expose sensitive kernel memory contents, affecting system security (NVD).

The issue has been patched by adding sanity checks to the validator functions for clock descriptor traversal. The fix ensures that when a descriptor length is shorter than expected, it's skipped in the loop. For clock source and multiplier descriptors, the patch implements length checks against sizeof() each descriptor type. For clock selector descriptors of UAC2 and UAC3, additional checks were added for the bNrInPins elements array and associated fields (Kernel Patch).