Ubuntu alert USN-8493-1 (linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-azure, linux-azure-5.15, linux-azure-fde-5.15, linux-fips, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle, linux-realtime)
| From: | Giampaolo Fresi Roglia via ubuntu-security-announce <ubuntu-security-announce@lists.ubuntu.com> | |
| To: | ubuntu-security-announce@lists.ubuntu.com | |
| Subject: | [USN-8493-1] Linux kernel vulnerabilities | |
| Date: | Wed, 01 Jul 2026 19:23:48 +0200 | |
| Message-ID: | <sa78q7umxnf.fsf@canonical.com> | |
| Cc: | Giampaolo Fresi Roglia <giampaolo.fresi.roglia@canonical.com> |
========================================================================== Ubuntu Security Notice USN-8493-1 July 01, 2026 linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-azure, linux-azure-5.15, linux-azure-fde-5.15, linux-fips, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle, linux-realtime vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-aws-fips: Linux kernel for Amazon Web Services (AWS) systems with FIPS - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-fips: Linux kernel with FIPS - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms - linux-intel-iotg: Linux kernel for Intel IoT platforms - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-nvidia-tegra: Linux kernel for NVIDIA Tegra systems - linux-nvidia-tegra-igx: Linux kernel for NVIDIA Tegra IGX systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-realtime: Linux kernel for Real-time systems - linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems - linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-ibm-5.15: Linux kernel for IBM cloud systems - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-nvidia-tegra-5.15: Linux kernel for NVIDIA Tegra systems Details: 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: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; - STMicroelectronics network drivers; - NVME drivers; - x86 platform drivers; - SCSI subsystem; - SPI subsystem; - TCM subsystem; - USB over IP driver; - File systems infrastructure; - HFS+ file system; - Network file system (NFS) server daemon; - SMB network file system; - IPv6 networking; - Tracing infrastructure; - Timer subsystem; - B.A.T.M.A.N. meshing protocol; - Bluetooth subsystem; - Ethernet bridge; - Ceph Core library; - IPv4 networking; - MAC80211 subsystem; - Multipath TCP; - Netfilter; - RxRPC session sockets; - SMC sockets; - Sun RPC protocol; - X.25 network layer; - AMD SoC Alsa drivers; - KVM subsystem; (CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822, CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214, CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182, CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202, CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278, CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114, CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341, CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043, CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1052-nvidia-tegra-igx 5.15.0-1052.52 linux-image-5.15.0-1052-nvidia-tegra-igx-rt 5.15.0-1052.52 linux-image-5.15.0-1063-nvidia-tegra 5.15.0-1063.63 linux-image-5.15.0-1063-nvidia-tegra-rt 5.15.0-1063.63 linux-image-5.15.0-1094-gkeop 5.15.0-1094.102 linux-image-5.15.0-1103-intel-iot-realtime 5.15.0-1103.105 Available with Ubuntu Pro linux-image-5.15.0-1103-kvm 5.15.0-1103.108 linux-image-5.15.0-1105-ibm 5.15.0-1105.109 linux-image-5.15.0-1106-intel-iotg 5.15.0-1106.112 linux-image-5.15.0-1106-nvidia 5.15.0-1106.107 linux-image-5.15.0-1106-nvidia-lowlatency 5.15.0-1106.107 linux-image-5.15.0-1107-gke 5.15.0-1107.113 linux-image-5.15.0-1108-oracle 5.15.0-1108.114 linux-image-5.15.0-1110-realtime 5.15.0-1110.119 Available with Ubuntu Pro linux-image-5.15.0-1111-aws 5.15.0-1111.118 linux-image-5.15.0-1111-aws-64k 5.15.0-1111.118 linux-image-5.15.0-1111-aws-fips 5.15.0-1111.118+fips1 Available with Ubuntu Pro linux-image-5.15.0-1111-gcp 5.15.0-1111.121 linux-image-5.15.0-1111-gcp-fips 5.15.0-1111.121+fips1 Available with Ubuntu Pro linux-image-5.15.0-1116-azure 5.15.0-1116.125 linux-image-5.15.0-183-lowlatency 5.15.0-183.193 linux-image-5.15.0-183-lowlatency-64k 5.15.0-183.193 linux-image-5.15.0-185-fips 5.15.0-185.195+fips1 Available with Ubuntu Pro linux-image-5.15.0-185-generic 5.15.0-185.195 linux-image-5.15.0-185-generic-64k 5.15.0-185.195 linux-image-5.15.0-185-generic-lpae 5.15.0-185.195 linux-image-aws-5.15 5.15.0.1111.114 linux-image-aws-64k-5.15 5.15.0.1111.114 linux-image-aws-64k-lts-22.04 5.15.0.1111.114 linux-image-aws-fips 5.15.0.1111.107 Available with Ubuntu Pro linux-image-aws-fips-5.15 5.15.0.1111.107 Available with Ubuntu Pro linux-image-aws-lts-22.04 5.15.0.1111.114 linux-image-azure-5.15 5.15.0.1116.114 linux-image-azure-lts-22.04 5.15.0.1116.114 linux-image-fips 5.15.0.185.108 Available with Ubuntu Pro linux-image-fips-5.15 5.15.0.185.108 Available with Ubuntu Pro linux-image-gcp-5.15 5.15.0.1111.108 linux-image-gcp-fips 5.15.0.1111.101 Available with Ubuntu Pro linux-image-gcp-fips-5.15 5.15.0.1111.101 Available with Ubuntu Pro linux-image-gcp-lts-22.04 5.15.0.1111.108 linux-image-generic 5.15.0.185.166 linux-image-generic-5.15 5.15.0.185.166 linux-image-generic-64k 5.15.0.185.166 linux-image-generic-64k-5.15 5.15.0.185.166 linux-image-generic-lpae 5.15.0.185.166 linux-image-generic-lpae-5.15 5.15.0.185.166 linux-image-gke 5.15.0.1107.106 linux-image-gke-5.15 5.15.0.1107.106 linux-image-gkeop 5.15.0.1094.93 linux-image-gkeop-5.15 5.15.0.1094.93 linux-image-ibm 5.15.0.1105.102 linux-image-ibm-5.15 5.15.0.1105.102 linux-image-intel-iot-realtime 5.15.0.1103.107 Available with Ubuntu Pro linux-image-intel-iot-realtime-5.15 5.15.0.1103.107 Available with Ubuntu Pro linux-image-intel-iotg 5.15.0.1106.105 linux-image-intel-iotg-5.15 5.15.0.1106.105 linux-image-kvm 5.15.0.1103.99 linux-image-kvm-5.15 5.15.0.1103.99 linux-image-lowlatency 5.15.0.183.154 linux-image-lowlatency-5.15 5.15.0.183.154 linux-image-lowlatency-64k 5.15.0.183.154 linux-image-lowlatency-64k-5.15 5.15.0.183.154 linux-image-nvidia 5.15.0.1106.106 linux-image-nvidia-5.15 5.15.0.1106.106 linux-image-nvidia-lowlatency 5.15.0.1106.106 linux-image-nvidia-lowlatency-5.15 5.15.0.1106.106 linux-image-nvidia-tegra 5.15.0.1063.63 linux-image-nvidia-tegra-5.15 5.15.0.1063.63 linux-image-nvidia-tegra-igx 5.15.0.1052.54 linux-image-nvidia-tegra-igx-5.15 5.15.0.1052.54 linux-image-nvidia-tegra-igx-rt 5.15.0.1052.54 linux-image-nvidia-tegra-igx-rt-5.15 5.15.0.1052.54 linux-image-nvidia-tegra-rt 5.15.0.1063.63 linux-image-nvidia-tegra-rt-5.15 5.15.0.1063.63 linux-image-oem-20.04 5.15.0.185.166 linux-image-oracle-5.15 5.15.0.1108.104 linux-image-oracle-lts-22.04 5.15.0.1108.104 linux-image-realtime 5.15.0.1110.114 Available with Ubuntu Pro linux-image-realtime-5.15 5.15.0.1110.114 Available with Ubuntu Pro linux-image-virtual 5.15.0.185.166 linux-image-virtual-5.15 5.15.0.185.166 Ubuntu 20.04 LTS linux-image-5.15.0-1063-nvidia-tegra 5.15.0-1063.63~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1063-nvidia-tegra-rt 5.15.0-1063.63~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1105-ibm 5.15.0-1105.109~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1111-aws 5.15.0-1111.118~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1116-azure 5.15.0-1116.125~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-1116-azure-fde 5.15.0-1116.125~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-183-lowlatency 5.15.0-183.193~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-183-lowlatency-64k 5.15.0-183.193~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-185-generic 5.15.0-185.195~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-185-generic-64k 5.15.0-185.195~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-185-generic-lpae 5.15.0-185.195~20.04.1 Available with Ubuntu Pro linux-image-aws 5.15.0.1111.118~20.04.1 Available with Ubuntu Pro linux-image-aws-5.15 5.15.0.1111.118~20.04.1 Available with Ubuntu Pro linux-image-azure 5.15.0.1116.125~20.04.1 Available with Ubuntu Pro linux-image-azure-5.15 5.15.0.1116.125~20.04.1 Available with Ubuntu Pro linux-image-azure-cvm 5.15.0.1116.125~20.04.1 Available with Ubuntu Pro linux-image-azure-fde 5.15.0.1116.125~20.04.1 Available with Ubuntu Pro linux-image-azure-fde-5.15 5.15.0.1116.125~20.04.1 Available with Ubuntu Pro linux-image-generic-5.15 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-generic-64k-5.15 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-generic-64k-hwe-20.04 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-generic-hwe-20.04 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-generic-lpae-5.15 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-generic-lpae-hwe-20.04 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-ibm 5.15.0.1105.109~20.04.1 Available with Ubuntu Pro linux-image-ibm-5.15 5.15.0.1105.109~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.15 5.15.0.183.193~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-5.15 5.15.0.183.193~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-hwe-20.04 5.15.0.183.193~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-20.04 5.15.0.183.193~20.04.1 Available with Ubuntu Pro linux-image-nvidia-tegra 5.15.0.1063.63~20.04.1 Available with Ubuntu Pro linux-image-nvidia-tegra-5.15 5.15.0.1063.63~20.04.1 Available with Ubuntu Pro linux-image-nvidia-tegra-rt 5.15.0.1063.63~20.04.1 Available with Ubuntu Pro linux-image-nvidia-tegra-rt-5.15 5.15.0.1063.63~20.04.1 Available with Ubuntu Pro linux-image-oem-20.04 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-oem-20.04b 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-oem-20.04c 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-oem-20.04d 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-virtual-5.15 5.15.0.185.195~20.04.1 Available with Ubuntu Pro linux-image-virtual-hwe-20.04 5.15.0.185.195~20.04.1 Available with Ubuntu Pro After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-8493-1 CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822, CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214, CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182, CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202, CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278, CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114, CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341, CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043, CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-185.195 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-111... https://launchpad.net/ubuntu/+source/linux-aws-fips/5.15.... https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1... https://launchpad.net/ubuntu/+source/linux-fips/5.15.0-18... https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-111... https://launchpad.net/ubuntu/+source/linux-gcp-fips/5.15.... https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-110... https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1... https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-110... https://launchpad.net/ubuntu/+source/linux-intel-iot-real... https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.1... https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-110... https://launchpad.net/ubuntu/+source/linux-lowlatency/5.1... https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-... https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/5... https://launchpad.net/ubuntu/+source/linux-nvidia-tegra-i... https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-... https://launchpad.net/ubuntu/+source/linux-realtime/5.15....
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