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UBUNTU SECURITY NOTICECANONICALVERIFIED

PUBLISHER UPDATE · USN-8816-4

USN-8816-4 release notes and known issues

USN-8816-4: Linux kernel (GKE) vulnerabilities

Scope: Ubuntu. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.

Summary

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; - InfiniBand drivers; - IOMMU subsystem; - Multiple devices driver; - Network drivers; - Microsoft Azure Network Adapter (MANA) driver; - NVME drivers; - TCM subsystem; - Virtio Host (VHOST) subsystem; - Xen hypervisor drivers; - AFS file system; - File systems infrastructure; - Network file systems library; - Network file system (NFS) client; - NTFS3 file system; - OCFS2 file system; - OrangeFS file system; - SMB network file system; - IPv4 networking; - Sun RPC protocol; - IPv6 networking; - IP tunnels definitions; - Netfilter; - TCP network protocol; - Locking primitives; - 9P file system network protocol; - B.A.T.M.A.N. meshing protocol; - Networking core; - IFE protocol; - RxRPC session sockets; - Network traffic control; - SCTP protocol; - SMC sockets; - TIPC protocol; - XFRM subsystem; (CVE-2026-64530, CVE-2026-64534, CVE-2026-64535, CVE-2026-64541, CVE-2026-64551, CVE-2026-68083, CVE-2026-68457, CVE-2026-68476, CVE-2026-68477, CVE-2026-72014, CVE-2026-72020, CVE-2026-72033, CVE-2026-72041, CVE-2026-72046, CVE-2026-72064, CVE-2026-72065, CVE-2026-72069, CVE-2026-72083, CVE-2026-72084, CVE-2026-72085, CVE-2026-72098, CVE-2026-72129, CVE-2026-72130, CVE-2026-72137, CVE-2026-72139, CVE-2026-72191, CVE-2026-72192, CVE-2026-72194, CVE-2026-72217, CVE-2026-72220, CVE-2026-72221, CVE-2026-72222, CVE-2026-72226, CVE-2026-72234, CVE-2026-72248, CVE-2026-72249, CVE-2026-72251, CVE-2026-72277, CVE-2026-72278, CVE-2026-72279, CVE-2026-72287, CVE-2026-72288, CVE-2026-72289, CVE-2026-72296, CVE-2026-72299, CVE-2026-72317, CVE-2026-72318, CVE-2026-72319, CVE-2026-72320, CVE-2026-72322, CVE-2026-72323, CVE-2026-72329, CVE-2026-72339, CVE-2026-72348, CVE-2026-72351, CVE-2026-72355, CVE-2026-72366, CVE-2026-72381, CVE-2026-72393, CVE-2026-72398, CVE-2026-72399, CVE-2026-72412, CVE-2026-72417, CVE-2026-72422, CVE-2026-72429, CVE-2026-72436, CVE-2026-72442, CVE-2026-72451, CVE-2026-72463, CVE-2026-72466, CVE-2026-72472, CVE-2026-72473, CVE-2026-72477, CVE-2026-72491, CVE-2026-72493, CVE-2026-72494, CVE-2026-72495, CVE-2026-72496, CVE-2026-72501, CVE-2026-74255, CVE-2026-74267, CVE-2026-74268, CVE-2026-74269, CVE-2026-74287, CVE-2026-74310, CVE-2026-74345, CVE-2026-74350, CVE-2026-74361, CVE-2026-74376, CVE-2026-74384, CVE-2026-74394, CVE-2026-74398, CVE-2026-74401, CVE-2026-74406, CVE-2026-74427, CVE-2026-74428, CVE-2026-74433, CVE-2026-74434, CVE-2026-74436, CVE-2026-74439, CVE-2026-80665)

Improvements and security content

  • Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; - InfiniBand drivers; - IOMMU subsystem; - Multiple devices driver; - Network drivers; - Microsoft Azure Network Adapter (MANA) driver; - NVME drivers; - TCM subsystem; - Virtio Host (VHOST) subsystem; - Xen hypervisor drivers; - AFS file system; - File systems infrastructure; - Network file systems library; - Network file system (NFS) client; - NTFS3 file system; - OCFS2 file system; - OrangeFS file system; - SMB network file system; - IPv4 networking; - Sun RPC protocol; - IPv6 networking; - IP tunnels definitions; - Netfilter; - TCP network protocol; - Locking primitives; - 9P file system network protocol; - B.A.T.M.A.N. meshing protocol; - Networking core; - IFE protocol; - RxRPC session sockets; - Network traffic control; - SCTP protocol; - SMC sockets; - TIPC protocol; - XFRM subsystem; (CVE-2026-64530, CVE-2026-64534, CVE-2026-64535, CVE-2026-64541, CVE-2026-64551, CVE-2026-68083, CVE-2026-68457, CVE-2026-68476, CVE-2026-68477, CVE-2026-72014, CVE-2026-72020, CVE-2026-72033, CVE-2026-72041, CVE-2026-72046, CVE-2026-72064, CVE-2026-72065, CVE-2026-72069, CVE-2026-72083, CVE-2026-72084, CVE-2026-72085, CVE-2026-72098, CVE-2026-72129, CVE-2026-72130, CVE-2026-72137, CVE-2026-72139, CVE-2026-72191, CVE-2026-72192, CVE-2026-72194, CVE-2026-72217, CVE-2026-72220, CVE-2026-72221, CVE-2026-72222, CVE-2026-72226, CVE-2026-72234, CVE-2026-72248, CVE-2026-72249, CVE-2026-72251, CVE-2026-72277, CVE-2026-72278, CVE-2026-72279, CVE-2026-72287, CVE-2026-72288, CVE-2026-72289, CVE-2026-72296, CVE-2026-72299, CVE-2026-72317, CVE-2026-72318, CVE-2026-72319, CVE-2026-72320, CVE-2026-72322, CVE-2026-72323, CVE-2026-72329, CVE-2026-72339, CVE-2026-72348, CVE-2026-72351, CVE-2026-72355, CVE-2026-72366, CVE-2026-72381, CVE-2026-72393, CVE-2026-72398, CVE-2026-72399, CVE-2026-72412, CVE-2026-72417, CVE-2026-72422, CVE-2026-72429, CVE-2026-72436, CVE-2026-72442, CVE-2026-72451, CVE-2026-72463, CVE-2026-72466, CVE-2026-72472, CVE-2026-72473, CVE-2026-72477, CVE-2026-72491, CVE-2026-72493, CVE-2026-72494, CVE-2026-72495, CVE-2026-72496, CVE-2026-72501, CVE-2026-74255, CVE-2026-74267, CVE-2026-74268, CVE-2026-74269, CVE-2026-74287, CVE-2026-74310, CVE-2026-74345, CVE-2026-74350, CVE-2026-74361, CVE-2026-74376, CVE-2026-74384, CVE-2026-74394, CVE-2026-74398, CVE-2026-74401, CVE-2026-74406, CVE-2026-74427, CVE-2026-74428, CVE-2026-74433, CVE-2026-74434, CVE-2026-74436, CVE-2026-74439, CVE-2026-80665)

Known issues

Publisher statement

Not stated. The verified publisher record does not contain a known-issues statement.

Affected products and versions

Products

  • Ubuntu

Affected versions

  • See the official publisher source for applicability.

Fixed versions or updates

  • No fixed version is stated in this record.

Recommended action

Review the official publisher document before deployment.

Related vulnerabilities

BlackTree CVE Intelligence
CVE-2026-64530Open CVE report →CVE-2026-64534Open CVE report →CVE-2026-64535Open CVE report →CVE-2026-64541Open CVE report →CVE-2026-64551Open CVE report →CVE-2026-68083Open CVE report →CVE-2026-68457Open CVE report →CVE-2026-68476Open CVE report →CVE-2026-68477Open CVE report →CVE-2026-72014Open CVE report →CVE-2026-72020Open CVE report →CVE-2026-72033Open CVE report →CVE-2026-72041Open CVE report →CVE-2026-72046Open CVE report →CVE-2026-72064Open CVE report →CVE-2026-72065Open CVE report →CVE-2026-72069Open CVE report →CVE-2026-72083Open CVE report →CVE-2026-72084Open CVE report →CVE-2026-72085Open CVE report →CVE-2026-72098Open CVE report →CVE-2026-72129Open CVE report →CVE-2026-72130Open CVE report →CVE-2026-72137Open CVE report →CVE-2026-72139Open CVE report →CVE-2026-72191Open CVE report →CVE-2026-72192Open CVE report →CVE-2026-72194Open CVE report →CVE-2026-72217Open CVE report →CVE-2026-72220Open CVE report →CVE-2026-72221Open CVE report →CVE-2026-72222Open CVE report →CVE-2026-72226Open CVE report →CVE-2026-72234Open CVE report →CVE-2026-72248Open CVE report →CVE-2026-72249Open CVE report →CVE-2026-72251Open CVE report →CVE-2026-72277Open CVE report →CVE-2026-72278Open CVE report →CVE-2026-72279Open CVE report →CVE-2026-72287Open CVE report →CVE-2026-72288Open CVE report →CVE-2026-72289Open CVE report →CVE-2026-72296Open CVE report →CVE-2026-72299Open CVE report →CVE-2026-72317Open CVE report →CVE-2026-72318Open CVE report →CVE-2026-72319Open CVE report →CVE-2026-72320Open CVE report →CVE-2026-72322Open CVE report →CVE-2026-72323Open CVE report →CVE-2026-72329Open CVE report →CVE-2026-72339Open CVE report →CVE-2026-72348Open CVE report →CVE-2026-72351Open CVE report →CVE-2026-72355Open CVE report →CVE-2026-72366Open CVE report →CVE-2026-72381Open CVE report →CVE-2026-72393Open CVE report →CVE-2026-72398Open CVE report →CVE-2026-72399Open CVE report →CVE-2026-72412Open CVE report →CVE-2026-72417Open CVE report →CVE-2026-72422Open CVE report →CVE-2026-72429Open CVE report →CVE-2026-72436Open CVE report →CVE-2026-72442Open CVE report →CVE-2026-72451Open CVE report →CVE-2026-72463Open CVE report →CVE-2026-72466Open CVE report →CVE-2026-72472Open CVE report →CVE-2026-72473Open CVE report →CVE-2026-72477Open CVE report →CVE-2026-72491Open CVE report →CVE-2026-72493Open CVE report →CVE-2026-72494Open CVE report →CVE-2026-72495Open CVE report →CVE-2026-72496Open CVE report →CVE-2026-72501Open CVE report →CVE-2026-74255Open CVE report →CVE-2026-74267Open CVE report →CVE-2026-74268Open CVE report →CVE-2026-74269Open CVE report →CVE-2026-74287Open CVE report →CVE-2026-74310Open CVE report →CVE-2026-74345Open CVE report →CVE-2026-74350Open CVE report →CVE-2026-74361Open CVE report →CVE-2026-74376Open CVE report →CVE-2026-74384Open CVE report →CVE-2026-74394Open CVE report →CVE-2026-74398Open CVE report →CVE-2026-74401Open CVE report →CVE-2026-74406Open CVE report →CVE-2026-74427Open CVE report →CVE-2026-74428Open CVE report →CVE-2026-74433Open CVE report →CVE-2026-74434Open CVE report →CVE-2026-74436Open CVE report →CVE-2026-74439Open CVE report →CVE-2026-80665Open CVE report →

These links connect the publisher update to related Lifecycle records without treating the update publication date as an end-of-support date.

Ubuntu 24.04 LTSOpen lifecycle record →

Official publisher evidence

CANONICALVERIFIED

USN-8816-4: Linux kernel (GKE) vulnerabilities

Checked 6 Oct 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.

Open the official publisher source