MEDIUM 5.5 Microsoft
CVE-2026-31447
ext4: reject mount if bigalloc with s_first_data_block != 0
Microsoft Security Update 2026-Apr: ext4: reject mount if bigalloc with s_first_data_block != 0
Affected Products
- azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31447
- https://nvd.nist.gov/vuln/detail/CVE-2026-31447
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-04-14 via Microsoft. Affected: azl3 kernel 6.6.130.1-3 on Azure Linux 3.0.
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