CVE-2025-39800
btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()
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Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() If we find an unexpected generation for the extent buffer we are cloning at btrfs_copy_root(), we just WARN_ON() and don't error out and abort the transaction, meaning we allow to persist metadata with an unexpected generation. Instead of warning only, abort the transaction and return -EUCLEAN.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8
- https://git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7a
- https://git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6a
- https://git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892f
- https://git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3
References (7)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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