HIGH 7.8 Microsoft
CVE-2025-39738
btrfs: do not allow relocation of partially dropped subvolumes
Microsoft Security Update 2025-Sep: btrfs: do not allow relocation of partially dropped subvolumes
Affected Products
- azl3 kernel 6.6.96.2-2 on Azure Linux 3.0
- cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39738
- https://nvd.nist.gov/vuln/detail/CVE-2025-39738
This high severity vulnerability with a CVSS score of 7.8 was published on 2025-09-09 via Microsoft. Affected: azl3 kernel 6.6.96.2-2 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0.
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