CVE-2026-23214: btrfs: reject new transactions if the fs is fully read-only
btrfs: reject new transactions if the fs is fully read-only
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Apply the kernel fix so that Btrfs rejects starting new transactions when the filesystem is fully read-only (as marked by rescue mount options), preventing transaction-triggering during unmount/inode eviction.
Btrfs reject new transactions if the fs is fully read-only (rescue mount options) = enabled
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23214?
The severity of CVE-2026-23214 has been classified as medium due to the potential risks associated with the improper handling of transactions in a fully read-only file system.
How do I fix CVE-2026-23214?
To fix CVE-2026-23214, ensure that your Linux kernel is updated to the latest version where this vulnerability has been patched.
What systems are affected by CVE-2026-23214?
CVE-2026-23214 affects the Linux kernel specifically in environments where the btrfs file system is used.
What is the impact of CVE-2026-23214?
The impact of CVE-2026-23214 includes the rejection of new transactions, which can lead to data integrity issues in fully read-only file systems.
Is there a workaround for CVE-2026-23214?
A recommended workaround for CVE-2026-23214 is to avoid using fully read-only btrfs file systems until the kernel is upgraded to a secure version.