HIGH 8.4 Microsoft
CVE-2025-40135
ipv6: use RCU in ip6_xmit()
Microsoft Security Update 2025-Nov: ipv6: use RCU in ip6_xmit()
Affected Products
- azl3 kernel 6.6.117.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.119.3-3 on Azure Linux 3.0
- azl3 kernel 6.6.121.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.126.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.112.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.119.3-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40135
- https://nvd.nist.gov/vuln/detail/CVE-2025-40135
This high severity vulnerability with a CVSS score of 8.4 was published on 2025-11-11 via Microsoft. Affected: azl3 kernel 6.6.117.1-1 on Azure Linux 3.0, azl3 kernel 6.6.119.3-3 on Azure Linux 3.0, azl3 kernel 6.6.121.1-1 on Azure Linux 3.0 and 3 more.
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