HIGH 8.1 Microsoft

CVE-2026-46331

net/sched: fix pedit partial COW leading to page cache corruption

Microsoft Security Update 2026-Jun: net/sched: fix pedit partial COW leading to page cache corruption

Affected Products

azl3 kernel 6.6.139.1-1 on Azure Linux 3.0
azl3 kernel 6.6.141.1-1 on Azure Linux 3.0
azl3 kernel 6.6.143.1-1 on Azure Linux 3.0

Remediation

$ sudo apt install --only-upgrade linux-kernel

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46331
https://nvd.nist.gov/vuln/detail/CVE-2026-46331

Published: 2026-06-09 · Source: Microsoft · Feed updated: 2026-08-14

This high severity vulnerability with a CVSS score of 8.1 was published on 2026-06-09 via Microsoft. A remediation command is available below. Affected: azl3 kernel 6.6.139.1-1 on Azure Linux 3.0, azl3 kernel 6.6.141.1-1 on Azure Linux 3.0, azl3 kernel 6.6.143.1-1 on Azure Linux 3.0.

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