CVE-2024-41052: 
Linux Kernel vulnerability analysis and mitigation

CVE-2024-41052 affects the Linux kernel's VFIO/PCI subsystem. The vulnerability was discovered when an uninitialized count variable was found in the hot-reset devices collection functionality. This security issue was disclosed on July 29, 2024, affecting Linux kernel versions from 6.6.36 up to (excluding) 6.6.41 and from 6.9.7 up to (excluding) 6.9.10 (NVD).

The vulnerability stems from an uninitialized count variable in the VFIO/PCI subsystem's hot-reset device collection functionality. When the get hot reset info path is triggered, the uninitialized variable leads to incorrect device counting. The issue has been assigned a CVSS v3.1 base score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating local access requirements and potential high impact on availability (NVD).

The vulnerability can result in mistakes in device counting and potentially crash the userspace when the get hot reset info path is triggered. This primarily affects system stability and availability, with no direct impact on confidentiality or integrity (Kernel Patch).

The vulnerability has been fixed by initializing the count variable to 0 in the affected code. The fix has been implemented in various Linux kernel versions, including 6.8.0-48.48 for Ubuntu 24.04 LTS and corresponding versions for other distributions. Users are advised to update their systems to the patched versions (Ubuntu).