Race Condition Vulnerability in Btrfs Filesystem by Linux Kernel Vendor

CVE-2023-53339

What is CVE-2023-53339?

In the Btrfs filesystem of the Linux kernel, a race condition has been identified that can cause a panic due to an unresolved BUG_ON condition in the btrfs_cancel_balance function. This vulnerability arises when a balance operation is paused and canceled simultaneously. The failure to account for this scenario can result in system instability. Although the issue prompts a kernel panic, it does not have other side effects, making it critical to address to prevent potential system disruptions.

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