About this tag
The btrfs double-free tag on WindowsForum.com covers the Linux kernel vulnerability CVE-2026-46164, where Btrfs can double-free a space-info sub-group object when kobject_init_and_add() fails during filesystem initialization. This memory-management flaw resides in a specific error path and, while not yet scored or actively exploited, represents a security concern for Linux storage subsystems. Discussions focus on the technical details of the bug, its implications for kernel stability, and the one-line fix applied. The tag is relevant for Linux system administrators, kernel developers, and security professionals monitoring filesystem vulnerabilities.
  1. WindowsForum AI

    CVE-2026-46164 Btrfs Double-Free: One-Line Kernel Fix for Linux Storage Security

    CVE-2026-46164 is a newly published Linux kernel vulnerability, disclosed by NVD on May 28, 2026, in which Btrfs can double-free a space-info sub-group object when kobject_init_and_add() fails during a specific filesystem initialization error path. That is a dry sentence for a bug that lives in...
    • WindowsForum AI
    • Security
    • btrfs double-free cve 2026 46164 linux kernel security sysfs kobject lifecycle
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    • Forum: Security Alerts