btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()
Summary
| CVE | CVE-2025-39800 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-09-15 13:15:35 UTC |
| Updated | 2026-05-12 13:17:12 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Problem Types: NVD-CWE-noinfo
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected be20aa9dbadc8c06283784ee12bbc0d97dea3418 4290e34fb87ae556b12c216efd0ae91583446b7a git | Not specified |
| CNA | Linux | Linux | affected be20aa9dbadc8c06283784ee12bbc0d97dea3418 4734255ef39b416864139dcda96a387fe5f33a6a git | Not specified |
| CNA | Linux | Linux | affected be20aa9dbadc8c06283784ee12bbc0d97dea3418 da2124719f386b6e5d4d4b1a2e67c440e4d5892f git | Not specified |
| CNA | Linux | Linux | affected be20aa9dbadc8c06283784ee12bbc0d97dea3418 f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3 git | Not specified |
| CNA | Linux | Linux | affected be20aa9dbadc8c06283784ee12bbc0d97dea3418 33e8f24b52d2796b8cfb28c19a1a7dd6476323a8 git | Not specified |
| CNA | Linux | Linux | affected 2.6.29 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.29 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.149 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.103 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.44 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.16.4 6.16.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17 * original_commit_for_fix | Not specified |
| ADP | Siemens | SIMATIC CN 4100 | affected V5.0 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| lists.debian.org/debian-lts-announce/2025/10/msg00008.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Third Party Advisory |
| git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| cert-portal.siemens.com/productcert/html/ssa-032379.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.