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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= be20aa9dbadc8c06283784ee12bbc0d97dea3418, < 4290e34fb87ae556b12c216efd0ae91583446b7a; >= be20aa9dbadc8c06283784ee12bbc0d97dea3418, < 4734255ef39b416864139dcda96a387fe5f33a6a; >= be20aa9dbadc8c06283784ee12bbc0d97dea3418, < da2124719f386b6e5d4d4b1a2e67c440e4d5892f; >= be20aa9dbadc8c06283784ee12bbc0d97dea3418, < f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3; >= be20aa9dbadc8c06283784ee12bbc0d97dea3418, < 33e8f24b52d2796b8cfb28c19a1a7dd6476323a8 |
| Linux | Linux | 2.6.29 |
| Siemens | SIMATIC CN 4100 | < V5.0 |
References
- https://git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8Patch
- https://git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7aPatch
- https://git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6aPatch
- https://git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892fPatch
- https://git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
Timeline
- Published
- Sep 15, 2025
- Last modified
- Oct 19, 2026
- NVD status
- Modified