Fiche vulnérabilité
CVE-2025-39800 : faille moyenne linux linux kernel (CVSS 5.5)
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.
En bref
- Sévérité
- Moyenne (CVSS 5.5)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 15 sept. 2025
- Dernière mise à jour
- 30 juil. 2026
Produits concernés
- linux linux kernel
- debian debian linux
Références
- Fiche CVE-2025-39800 sur le NVD (NIST)
- git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd647632…
- git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446…
- git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33…
- git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d58…
- git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f7…
- lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- cert-portal.siemens.com/productcert/html/ssa-032379.html