Memory Reference Vulnerability in Linux Kernel Affecting Disk Management
CVE-2024-57875

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 11 January 2025

What is CVE-2024-57875?

A vulnerability in the Linux kernel relates to improper handling of disk revalidation processes. Specifically, it addresses the conventional zones bitmap of a disk, ensuring that changes do not lead to invalid memory references. Updates involve securing the disk->conv_zones_bitmap pointer with Read-Copy-Update (RCU) protection, allowing the disk_zone_is_conv() helper to operate under an RCU read lock. Moreover, the introduction of disk_set_conv_zones_bitmap() facilitates the safe update of the bitmap while accommodating potential changes without leading to resource mishandling. Key modifications include adjustments in disk_free_zone_resources() to ensure correct allocation and memory integrity, thereby enhancing the overall security posture of disk management operations within the Linux environment.

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