CVE-2025-39800

MEDIUM EPSS 3.5%
Published Sep 15, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥2.6.29  –  <6.1.149
linuxlinux_kernel*≥6.2  –  <6.6.103
linuxlinux_kernel*≥6.7  –  <6.12.44
linuxlinux_kernel*≥6.13  –  <6.16.4
debiandebian_linux11.0any

References 7

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-032379.html
  • git.kernel.org https://git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3
    Patch