Memory Leak Vulnerability in Linux Kernel's Btrfs Module

CVE-2025-40101

What is CVE-2025-40101?

A vulnerability in the Btrfs module of the Linux kernel could lead to memory leaks when processing certain data profiles. The issue arises during the execution of the btrfs_load_block_group_zone_info() function where an early return on encountering a non-SINGLE mapping type without an RST fails to free allocated memory. Proper management of memory is crucial to prevent resource exhaustion and maintain system stability.

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