Friday, April 17, 2026

[USN-8177-2] Linux kernel (Real-time) vulnerabilities

========================================================================== Ubuntu Security Notice USN-8177-2 April 17, 2026 linux-realtime-6.17 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-realtime-6.17: Linux kernel for Real-time systems Details: Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcode causing loss of integrity and confidentiality. (CVE-2024-36347) 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: - MIPS architecture; - PowerPC architecture; - User-Mode Linux (UML); - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Ublk userspace block driver; - Bluetooth drivers; - Character device driver; - TPM device driver; - Clock framework and drivers; - GPU drivers; - Hardware monitoring drivers; - Intel Trace Hub HW tracing drivers; - InfiniBand drivers; - Input Device core drivers; - Input Device (Mouse) drivers; - IOMMU subsystem; - Multiple devices driver; - Media drivers; - Network drivers; - Mellanox network drivers; - STMicroelectronics network drivers; - Ethernet team driver; - PA-RISC drivers; - Chrome hardware platform drivers; - x86 platform drivers; - SCSI subsystem; - SPI subsystem; - TCM subsystem; - Freescale USB OTG Transceiver Driver; - USB Type-C Connector System Software Interface driver; - Watchdog drivers; - BTRFS file system; - exFAT file system; - Ext4 file system; - F2FS file system; - FUSE (File system in Userspace); - HFS+ file system; - File systems infrastructure; - Network file system (NFS) server daemon; - File system notification infrastructure; - NTFS3 file system; - OCFS2 file system; - SMB network file system; - XFS file system; - User-space API (UAPI); - io_uring subsystem; - Scheduler infrastructure; - Shadow Call Stack mechanism; - Tracing infrastructure; - Memory management; - BPF subsystem; - CAIF protocol; - Ceph Core library; - Networking core; - Ethtool driver; - Handshake API; - HSR network protocol; - IPv4 networking; - IPv6 networking; - Multipath TCP; - Netfilter; - NET/ROM layer; - NFC subsystem; - Open vSwitch; - Rose network layer; - Network traffic control; - Sun RPC protocol; - Key management; - Landlock security; - STMicroelectronics SoC drivers; - USB sound devices; - KVM subsystem; (CVE-2025-68351, CVE-2025-68353, CVE-2025-68365, CVE-2025-68368, CVE-2025-68725, CVE-2025-68736, CVE-2025-68745, CVE-2025-68767, CVE-2025-68768, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68781, CVE-2025-68782, CVE-2025-68783, CVE-2025-68784, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68791, CVE-2025-68792, CVE-2025-68793, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68802, CVE-2025-68803, CVE-2025-68804, CVE-2025-68805, CVE-2025-68806, CVE-2025-68807, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-68822, CVE-2025-68823, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71070, CVE-2025-71071, CVE-2025-71072, CVE-2025-71073, CVE-2025-71075, CVE-2025-71076, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71080, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71099, CVE-2025-71100, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71115, CVE-2025-71116, CVE-2025-71117, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71124, CVE-2025-71125, CVE-2025-71126, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71143, CVE-2025-71146, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2025-71156, CVE-2025-71157, CVE-2026-23091, CVE-2026-23209) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.17.0-1010-realtime 6.17.0-1010.11~24.04.1 Available with Ubuntu Pro linux-image-realtime-6.17 6.17.0-1010.11~24.04.1 Available with Ubuntu Pro linux-image-realtime-hwe-24.04 6.17.0-1010.11~24.04.1 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-8177-2 https://ubuntu.com/security/notices/USN-8177-1 CVE-2024-36347, CVE-2025-68351, CVE-2025-68353, CVE-2025-68365, CVE-2025-68368, CVE-2025-68725, CVE-2025-68736, CVE-2025-68745, CVE-2025-68767, CVE-2025-68768, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68781, CVE-2025-68782, CVE-2025-68783, CVE-2025-68784, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68791, CVE-2025-68792, CVE-2025-68793, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68802, CVE-2025-68803, CVE-2025-68804, CVE-2025-68805, CVE-2025-68806, CVE-2025-68807, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-68822, CVE-2025-68823, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71070, CVE-2025-71071, CVE-2025-71072, CVE-2025-71073, CVE-2025-71075, CVE-2025-71076, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71080, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71099, CVE-2025-71100, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71115, CVE-2025-71116, CVE-2025-71117, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71124, CVE-2025-71125, CVE-2025-71126, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71143, CVE-2025-71146, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2025-71156, CVE-2025-71157, CVE-2026-23091, CVE-2026-23209 Package Information: https://launchpad.net/ubuntu/+source/linux-realtime-6.17/6.17.0-1010.11~24.04.1

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[USN-8182-1] Rack vulnerabilities

========================================================================== Ubuntu Security Notice USN-8182-1 April 17, 2026 ruby-rack vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in Rack. Software Description: - ruby-rack: modular Ruby webserver interface Details: Andrew Lacambra discovered that Rack did not properly parse certain regular expressions. An attacker could possibly use this issue to bypass network security filters. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-26961) William T. Nelson discovered that Rack did not handle multipart headers correctly. An attacker could possibly use this issue to cause downstream parsing issues or a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-26962) It was discovered that Rack did not handle the Forwarded header correctly. An attacker could possibly use this issue to manipulate header values. This issue only affected Ubuntu 25.10. (CVE-2026-32762) It was discovered that Rack could consume excessive CPU when handling certain Accept-Encoding values. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-34230) Haruki Oyama discovered that certain configurations of Rack could erroneously fail to derive the displayed directory path, and expose the full filesystem path. An attacker could possibly use this issue to disclose deployment details such as layout and usernames. (CVE-2026-34763) It was discovered that Rack did not properly handle static file paths. An attacker could possibly use this issue to exfiltrate unintentionally served data. (CVE-2026-34785) Haruki Oyama discovered that Rack did not apply header rules to certain requests for URL-encoded static paths. An attacker could possibly use this issue to bypass security-relevant response headers. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34786) It was discovered that Rack did not limit the number of ranges requested in the Range header. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34826) It was discovered that Rack could consume excessive CPU when parsing certain multipart parameters. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-34827) It was discovered that Rack could consume unbounded disk space when handling requests without a Content-Length header. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34829) Mehtab Zafar discovered that Rack directly interpreted the X-Accel-Mapping header as a regular expression without escaping. An attacker could possibly use this issue to exfiltrate arbitrary files from internal locations. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34830) It was discovered that Rack did not properly handle messages with Unicode. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34831) It was discovered that Rack did not properly parse the Host header. An attacker could possibly use this issue to bypass security filters or poison generated links. This issue only affected Ubuntu 25.10. (CVE-2026-34835) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 ruby-rack 3.1.16-0.1ubuntu0.3 Ubuntu 24.04 LTS ruby-rack 2.2.7-1ubuntu0.7 Ubuntu 22.04 LTS ruby-rack 2.1.4-5ubuntu1.2+esm3 Available with Ubuntu Pro Ubuntu 20.04 LTS ruby-rack 2.0.7-2ubuntu0.1+esm10 Available with Ubuntu Pro Ubuntu 18.04 LTS ruby-rack 1.6.4-4ubuntu0.2+esm10 Available with Ubuntu Pro Ubuntu 16.04 LTS ruby-rack 1.6.4-3ubuntu0.2+esm10 Available with Ubuntu Pro Ubuntu 14.04 LTS librack-ruby 1.5.2-3+deb8u3ubuntu1~esm11 Available with Ubuntu Pro librack-ruby1.8 1.5.2-3+deb8u3ubuntu1~esm11 Available with Ubuntu Pro librack-ruby1.9.1 1.5.2-3+deb8u3ubuntu1~esm11 Available with Ubuntu Pro ruby-rack 1.5.2-3+deb8u3ubuntu1~esm11 Available with Ubuntu Pro After a standard system update you need to restart any applications using Rack to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8182-1 CVE-2026-26961, CVE-2026-26962, CVE-2026-32762, CVE-2026-34230, CVE-2026-34763, CVE-2026-34785, CVE-2026-34786, CVE-2026-34826, CVE-2026-34827, CVE-2026-34829, CVE-2026-34830, CVE-2026-34831, CVE-2026-34835 Package Information: https://launchpad.net/ubuntu/+source/ruby-rack/3.1.16-0.1ubuntu0.3 https://launchpad.net/ubuntu/+source/ruby-rack/2.2.7-1ubuntu0.7

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[USN-8181-1] ESAPI vulnerabilities

========================================================================== Ubuntu Security Notice USN-8181-1 April 16, 2026 libowasp-esapi-java vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in ESAPI. Software Description: - libowasp-esapi-java: Web application security control library from OWASP Details: Jaroslav Lobačevski discovered that ESAPI incorrectly validated directory paths during path verification. An attacker could possibly use this issue to bypass directory validation checks, leading to control-flow bypass. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-23457) Kevin W. Wall and Sebastian Passaro discovered that ESAPI did not properly sanitize javascript URLs because of an incorrect regular expression. An attacker could possibly use this issue to perform a cross-site scripting attack. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-24891) Longlong Gong discovered that ESAPI did not properly neutralize special elements during SQL injection defense. A remote attacker could possibly use this issue to perform SQL injection. (CVE-2025-5878) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS libowasp-esapi-java 2.4.0.0-2ubuntu0.1 Ubuntu 22.04 LTS libowasp-esapi-java 2.2.3.1-1ubuntu0.1~esm1 Available with Ubuntu Pro libowasp-esapi-java-doc 2.2.3.1-1ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS libowasp-esapi-java 2.1.0-3ubuntu0.20.04.1~esm1 Available with Ubuntu Pro libowasp-esapi-java-doc 2.1.0-3ubuntu0.20.04.1~esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS libowasp-esapi-java 2.1.0-3ubuntu0.18.04.1~esm1 Available with Ubuntu Pro libowasp-esapi-java-doc 2.1.0-3ubuntu0.18.04.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS libowasp-esapi-java 2.1.0-2ubuntu0.1~esm1 Available with Ubuntu Pro libowasp-esapi-java-doc 2.1.0-2ubuntu0.1~esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8181-1 CVE-2022-23457, CVE-2022-24891, CVE-2025-5878 Package Information: https://launchpad.net/ubuntu/+source/libowasp-esapi-java/2.4.0.0-2ubuntu0.1

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[USN-8178-1] oFono vulnerabilities

========================================================================== Ubuntu Security Notice USN-8178-1 April 16, 2026 ofono vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: oFono could be made to crash if it received specially crafted input. Software Description: - ofono: A free software project for mobile telephony applications Details: It was discovered that oFono incorrectly handled crafted responses from AT commands. An attacker could possibly use this issue to crash the program, resulting in a denial of service or arbitrary code execution. (CVE-2024-7538, CVE-2024-7539, CVE-2024-7540, CVE-2024-7541, CVE-2024-7542) Lucas Leong discovered that oFono incorrectly handled crafted input. An attacker could possibly use this issue to crash the program, resulting in a denial of service or arbitrary code execution. (CVE-2024-7543, CVE-2024-7544, CVE-2024-7545, CVE-2024-7546, CVE-2024-7547) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS ofono 1.31-3ubuntu3.24.04.2+esm1 Available with Ubuntu Pro Ubuntu 22.04 LTS ofono 1.31-3ubuntu1.2+esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS ofono 1.31-2ubuntu1+esm3 Available with Ubuntu Pro Ubuntu 18.04 LTS ofono 1.21-1ubuntu1+esm3 Available with Ubuntu Pro Ubuntu 16.04 LTS ofono 1.17.bzr6912+16.04.20160314.3-0ubuntu1+esm3 Available with Ubuntu Pro References: https://ubuntu.com/security/notices/USN-8178-1 CVE-2024-7538, CVE-2024-7539, CVE-2024-7540, CVE-2024-7541, CVE-2024-7542, CVE-2024-7543, CVE-2024-7544, CVE-2024-7545, CVE-2024-7546, CVE-2024-7547

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[USN-8148-7] Linux kernel (NVIDIA) vulnerabilities

========================================================================== Ubuntu Security Notice USN-8148-7 April 16, 2026 linux-nvidia-lowlatency, linux-nvidia-tegra vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems - linux-nvidia-tegra: 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: - Cryptographic API; - Netfilter; - Network traffic control; (CVE-2026-23060, CVE-2026-23074, CVE-2026-23111) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1021-nvidia-tegra 6.8.0-1021.21 linux-image-6.8.0-1021-nvidia-tegra-rt 6.8.0-1021.21 linux-image-6.8.0-1050-nvidia-lowlatency 6.8.0-1050.53.1 linux-image-6.8.0-1050-nvidia-lowlatency-64k 6.8.0-1050.53.1 linux-image-nvidia-lowlatency 6.8.0-1050.53.1 linux-image-nvidia-lowlatency-6.8 6.8.0-1050.53.1 linux-image-nvidia-lowlatency-64k 6.8.0-1050.53.1 linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1050.53.1 linux-image-nvidia-tegra 6.8.0-1021.21 linux-image-nvidia-tegra-6.8 6.8.0-1021.21 linux-image-nvidia-tegra-rt 6.8.0-1021.21 linux-image-nvidia-tegra-rt-6.8 6.8.0-1021.21 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-8148-7 https://ubuntu.com/security/notices/USN-8148-6 https://ubuntu.com/security/notices/USN-8148-5 https://ubuntu.com/security/notices/USN-8148-4 https://ubuntu.com/security/notices/USN-8148-3 https://ubuntu.com/security/notices/USN-8148-2 https://ubuntu.com/security/notices/USN-8148-1 CVE-2026-23060, CVE-2026-23074, CVE-2026-23111 Package Information: https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1050.53.1 https://launchpad.net/ubuntu/+source/linux-nvidia-tegra/6.8.0-1021.21

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[USN-8180-1] Linux kernel vulnerabilities

========================================================================== Ubuntu Security Notice USN-8180-1 April 16, 2026 linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-lowlatency-hwe-5.15: Linux low latency kernel 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: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU drivers; - HID subsystem; - Intel Trace Hub HW tracing drivers; - IIO ADC drivers; - IRQ chip drivers; - Modular ISDN driver; - LED subsystem; - UACCE accelerator framework; - Ethernet bonding driver; - Network drivers; - STMicroelectronics network drivers; - Ethernet team driver; - NVME drivers; - PHY drivers; - SLIMbus drivers; - W1 Dallas's 1-wire bus driver; - Xen hypervisor drivers; - BTRFS file system; - Ext4 file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NTFS3 file system; - SMB network file system; - NFC subsystem; - BPF subsystem; - IRQ subsystem; - Memory management; - Bluetooth subsystem; - CAN network layer; - Networking core; - IPv4 networking; - IPv6 networking; - L2TP protocol; - NET/ROM layer; - Network traffic control; - SCTP protocol; - TLS protocol; - XFRM subsystem; - Creative Sound Blaster X-Fi driver; - USB sound devices; (CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207, CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408, CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211, CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817, CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194, CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003, CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037, CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058, CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103, CVE-2026-23105, CVE-2026-23108, CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128, CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150, CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1088-gkeop 5.15.0-1088.96 linux-image-5.15.0-1100-nvidia 5.15.0-1100.101 linux-image-5.15.0-1100-nvidia-lowlatency 5.15.0-1100.101 linux-image-5.15.0-1101-gke 5.15.0-1101.107 linux-image-5.15.0-1102-oracle 5.15.0-1102.108 linux-image-5.15.0-1105-aws 5.15.0-1105.112 linux-image-5.15.0-1105-aws-64k 5.15.0-1105.112 linux-image-5.15.0-1105-gcp 5.15.0-1105.114 linux-image-5.15.0-175-lowlatency 5.15.0-175.185 linux-image-5.15.0-175-lowlatency-64k 5.15.0-175.185 linux-image-5.15.0-176-generic 5.15.0-176.186 linux-image-5.15.0-176-generic-64k 5.15.0-176.186 linux-image-5.15.0-176-generic-lpae 5.15.0-176.186 linux-image-aws-5.15 5.15.0.1105.108 linux-image-aws-64k-5.15 5.15.0.1105.108 linux-image-aws-64k-lts-22.04 5.15.0.1105.108 linux-image-aws-lts-22.04 5.15.0.1105.108 linux-image-gcp-5.15 5.15.0.1105.101 linux-image-gcp-lts-22.04 5.15.0.1105.101 linux-image-generic 5.15.0.176.161 linux-image-generic-5.15 5.15.0.176.161 linux-image-generic-64k 5.15.0.176.161 linux-image-generic-64k-5.15 5.15.0.176.161 linux-image-generic-lpae 5.15.0.176.161 linux-image-generic-lpae-5.15 5.15.0.176.161 linux-image-gke 5.15.0.1101.100 linux-image-gke-5.15 5.15.0.1101.100 linux-image-gkeop 5.15.0.1088.87 linux-image-gkeop-5.15 5.15.0.1088.87 linux-image-lowlatency 5.15.0.175.148 linux-image-lowlatency-5.15 5.15.0.175.148 linux-image-lowlatency-64k 5.15.0.175.148 linux-image-lowlatency-64k-5.15 5.15.0.175.148 linux-image-nvidia 5.15.0.1100.100 linux-image-nvidia-5.15 5.15.0.1100.100 linux-image-nvidia-lowlatency 5.15.0.1100.100 linux-image-nvidia-lowlatency-5.15 5.15.0.1100.100 linux-image-oracle-5.15 5.15.0.1102.98 linux-image-oracle-lts-22.04 5.15.0.1102.98 linux-image-virtual 5.15.0.176.161 linux-image-virtual-5.15 5.15.0.176.161 Ubuntu 20.04 LTS linux-image-5.15.0-1105-aws 5.15.0-1105.112~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-175-lowlatency 5.15.0-175.185~20.04.1 Available with Ubuntu Pro linux-image-5.15.0-175-lowlatency-64k 5.15.0-175.185~20.04.1 Available with Ubuntu Pro linux-image-aws 5.15.0.1105.112~20.04.1 Available with Ubuntu Pro linux-image-aws-5.15 5.15.0.1105.112~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-5.15 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-5.15 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-64k-hwe-20.04 5.15.0.175.185~20.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-20.04 5.15.0.175.185~20.04.1 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-8180-1 CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207, CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408, CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211, CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817, CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194, CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003, CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037, CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058, CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103, CVE-2026-23105, CVE-2026-23108, CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128, CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150, CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-176.186 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1105.112 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1105.114 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1101.107 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1088.96 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-175.185 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1100.101 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1102.108

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Thursday, April 16, 2026

Re: [Test-Announce] Fedora Linux 44 was is a NO-GO for April 21st release target.

On Thu, 2026-04-16 at 21:25 +0000, Jef Spaleta via test-announce wrote: > There will be a blocker review meeting on Monday April 22nd at 1900 UTC (1500 EDT) in #blocker-review on matrix. Correction: Monday April 20th, at 1600 UTC. > There will be a subsequent Go/No-Go meeting Thursday April 23th 1800 UTC (1400 EDT) (I'll get that updated in the published schedule This is correct. -- Adam Williamson (he/him/his) Fedora QA Fedora Chat: @adamwill:fedora.im | Mastodon: @adamw@fosstodon.org https://www.happyassassin.net -- _______________________________________________ devel-announce mailing list -- devel-announce@lists.fedoraproject.org To unsubscribe send an email to devel-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel-announce@lists.fedoraproject.org Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new

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Fedora Linux 44 is a NO-GO for April 21st release target

Due to outstanding blocker bugs F44 Final was declared NO-GO in today's Go/No-GO meeting. The new release target date for Fedora 44 is now April 28th, 2026. I've updated the Fedora schedule to reflect the decision of today's Go/No-Go meeting https://fedorapeople.org/groups/schedule/f-44/f-44-key-tasks.html There will be a blocker review meeting on Monday April 22nd at 1900 UTC (1500 EDT) in #blocker-review on matrix. There will be a subsequent Go/No-Go meeting Thursday April 23th 1800 UTC (1400 EDT) (I'll get that updated in the published schedule soon) Apologies if there are some other dates in the schedule that seem to be referencing the earlier target release date, I'll get that cleaned up as we find them. -jef"Really looking forward to Aoife coming back from leave and wrangling the schedule"spaleta -- _______________________________________________ devel-announce mailing list -- devel-announce@lists.fedoraproject.org To unsubscribe send an email to devel-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel-announce@lists.fedoraproject.org Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new

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Fedora Linux 44 Final Go/No-Go, Thursday 16 Apr (today, in ~2 hours)

Hi all, The F44 Final Go/No-Go is scheduled for today, Thursday, 16 April, in #fedora-meeting on Matrix @ 1800 UTC[1] (around two hours from now). Note this is an hour later than historically normal in most timezones. At this time, we will determine the status of the F44 RC for the target #1 date of 21 April[2]. For more information about the Go/No-Go meeting, see the wiki[3]. [1] https://calendar.fedoraproject.org/Fedora%20release/2026/4/16/ [2] https://fedorapeople.org/groups/schedule/f-44/f-44-key-tasks.html [3] https://fedoraproject.org/wiki/Go_No_Go_Meeting -- Adam Williamson (he/him/his) Fedora QA Fedora Chat: @adamwill:fedora.im | Mastodon: @adamw@fosstodon.org https://www.happyassassin.net -- _______________________________________________ devel-announce mailing list -- devel-announce@lists.fedoraproject.org To unsubscribe send an email to devel-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel-announce@lists.fedoraproject.org Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new

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[USN-8179-1] Linux kernel vulnerabilities

========================================================================== Ubuntu Security Notice USN-8179-1 April 16, 2026 linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems - 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-lowlatency: Linux low latency kernel - linux-aws-6.8: Linux kernel for Amazon Web Services (AWS) systems - linux-lowlatency-hwe-6.8: Linux low latency kernel Details: Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcode causing loss of integrity and confidentiality. (CVE-2024-36347) 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: - MIPS architecture; - PowerPC architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Network block device driver; - Bluetooth drivers; - Character device driver; - TPM device driver; - Clock framework and drivers; - Data acquisition framework and drivers; - Hardware crypto device drivers; - GPU drivers; - Hardware monitoring drivers; - InfiniBand drivers; - Input Device core drivers; - IOMMU subsystem; - IRQ chip drivers; - Macintosh device drivers; - Multiple devices driver; - Media drivers; - Network drivers; - Mellanox network drivers; - STMicroelectronics network drivers; - Ethernet team driver; - MediaTek network drivers; - NVME drivers; - PA-RISC drivers; - Chrome hardware platform drivers; - x86 platform drivers; - Voltage and Current Regulator drivers; - SCSI subsystem; - SPI subsystem; - Media Oriented Systems Transport (MOST) driver; - Realtek RTL8723BS SDIO drivers; - TCM subsystem; - USB Host Controller drivers; - USB Type-C Connector System Software Interface driver; - Backlight driver; - Watchdog drivers; - BFS file system; - BTRFS file system; - Ext4 file system; - F2FS file system; - FUSE (File system in Userspace); - HFS+ file system; - File systems infrastructure; - Journaling layer for block devices (JBD2); - Network file system (NFS) client; - File system notification infrastructure; - NTFS3 file system; - OCFS2 file system; - SMB network file system; - BPF subsystem; - Ethernet bridge; - io_uring subsystem; - Locking primitives; - Scheduler infrastructure; - Shadow Call Stack mechanism; - Tracing infrastructure; - Memory management; - CAIF protocol; - Ceph Core library; - Networking core; - Ethtool driver; - Handshake API; - HSR network protocol; - IPv4 networking; - IPv6 networking; - MAC80211 subsystem; - Multipath TCP; - Netfilter; - NET/ROM layer; - NFC subsystem; - Open vSwitch; - Rose network layer; - Network traffic control; - Network sockets; - Sun RPC protocol; - Integrity Measurement Architecture(IMA) framework; - Key management; - Simplified Mandatory Access Control Kernel framework; - FireWire sound drivers; - HD-audio driver; - Turtle Beach Wavefront ALSA driver; - STMicroelectronics SoC drivers; - USB sound devices; - KVM subsystem; (CVE-2024-57795, CVE-2025-22022, CVE-2025-22111, CVE-2025-38022, CVE-2025-38234, CVE-2025-40164, CVE-2025-40325, CVE-2025-68206, CVE-2025-68254, CVE-2025-68255, CVE-2025-68256, CVE-2025-68257, CVE-2025-68258, CVE-2025-68259, CVE-2025-68261, CVE-2025-68263, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291, CVE-2025-68325, CVE-2025-68332, CVE-2025-68335, CVE-2025-68336, CVE-2025-68337, CVE-2025-68344, CVE-2025-68345, CVE-2025-68346, CVE-2025-68347, CVE-2025-68349, CVE-2025-68354, CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366, CVE-2025-68367, CVE-2025-68369, CVE-2025-68371, CVE-2025-68372, CVE-2025-68374, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380, CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732, CVE-2025-68733, CVE-2025-68740, CVE-2025-68741, CVE-2025-68742, CVE-2025-68744, CVE-2025-68746, CVE-2025-68753, CVE-2025-68755, CVE-2025-68756, CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68763, CVE-2025-68764, CVE-2025-68765, CVE-2025-68766, CVE-2025-68767, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68782, CVE-2025-68783, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68804, CVE-2025-68806, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71071, CVE-2025-71072, CVE-2025-71075, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71088, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71116, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71125, CVE-2025-71126, CVE-2025-71127, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71141, CVE-2025-71143, CVE-2025-71144, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2026-23209) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.8.0-1037-gkeop 6.8.0-1037.40 linux-image-6.8.0-1050-gke 6.8.0-1050.56 linux-image-6.8.0-1050-gke-64k 6.8.0-1050.56 linux-image-6.8.0-1051-ibm 6.8.0-1051.51 linux-image-6.8.0-1052-aws 6.8.0-1052.55 linux-image-6.8.0-1052-aws-64k 6.8.0-1052.55 linux-image-6.8.0-1054-gcp 6.8.0-1054.57 linux-image-6.8.0-1054-gcp-64k 6.8.0-1054.57 linux-image-6.8.0-110-generic 6.8.0-110.110 linux-image-6.8.0-110-generic-64k 6.8.0-110.110 linux-image-6.8.0-110-lowlatency 6.8.0-110.110.1 linux-image-6.8.0-110-lowlatency-64k 6.8.0-110.110.1 linux-image-aws-6.8 6.8.0-1052.55 linux-image-aws-64k-6.8 6.8.0-1052.55 linux-image-aws-64k-lts-24.04 6.8.0-1052.55 linux-image-aws-lts-24.04 6.8.0-1052.55 linux-image-gcp-6.8 6.8.0-1054.57 linux-image-gcp-64k-6.8 6.8.0-1054.57 linux-image-gcp-64k-lts-24.04 6.8.0-1054.57 linux-image-gcp-lts-24.04 6.8.0-1054.57 linux-image-generic 6.8.0-110.110 linux-image-generic-6.8 6.8.0-110.110 linux-image-generic-64k 6.8.0-110.110 linux-image-generic-64k-6.8 6.8.0-110.110 linux-image-generic-lpae 6.8.0-110.110 linux-image-gke 6.8.0-1050.56 linux-image-gke-6.8 6.8.0-1050.56 linux-image-gke-64k 6.8.0-1050.56 linux-image-gke-64k-6.8 6.8.0-1050.56 linux-image-gkeop 6.8.0-1037.40 linux-image-gkeop-6.8 6.8.0-1037.40 linux-image-ibm 6.8.0-1051.51 linux-image-ibm-6.8 6.8.0-1051.51 linux-image-ibm-classic 6.8.0-1051.51 linux-image-ibm-lts-24.04 6.8.0-1051.51 linux-image-intel-iotg 6.8.0-110.110 linux-image-kvm 6.8.0-110.110 linux-image-lowlatency 6.8.0-110.110.1 linux-image-lowlatency-6.8 6.8.0-110.110.1 linux-image-lowlatency-64k 6.8.0-110.110.1 linux-image-lowlatency-64k-6.8 6.8.0-110.110.1 linux-image-virtual 6.8.0-110.110 linux-image-virtual-6.8 6.8.0-110.110 Ubuntu 22.04 LTS linux-image-6.8.0-1052-aws 6.8.0-1052.55~22.04.1 linux-image-6.8.0-1052-aws-64k 6.8.0-1052.55~22.04.1 linux-image-6.8.0-110-lowlatency 6.8.0-110.110.1~22.04.1 linux-image-6.8.0-110-lowlatency-64k 6.8.0-110.110.1~22.04.1 linux-image-aws 6.8.0-1052.55~22.04.1 linux-image-aws-6.8 6.8.0-1052.55~22.04.1 linux-image-aws-64k 6.8.0-1052.55~22.04.1 linux-image-aws-64k-6.8 6.8.0-1052.55~22.04.1 linux-image-lowlatency-6.8 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-64k-6.8 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-64k-hwe-22.04 6.8.0-110.110.1~22.04.1 linux-image-lowlatency-hwe-22.04 6.8.0-110.110.1~22.04.1 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-8179-1 CVE-2024-36347, CVE-2024-57795, CVE-2025-22022, CVE-2025-22111, CVE-2025-38022, CVE-2025-38234, CVE-2025-40164, CVE-2025-40325, CVE-2025-68206, CVE-2025-68254, CVE-2025-68255, CVE-2025-68256, CVE-2025-68257, CVE-2025-68258, CVE-2025-68259, CVE-2025-68261, CVE-2025-68263, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291, CVE-2025-68325, CVE-2025-68332, CVE-2025-68335, CVE-2025-68336, CVE-2025-68337, CVE-2025-68344, CVE-2025-68345, CVE-2025-68346, CVE-2025-68347, CVE-2025-68349, CVE-2025-68354, CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366, CVE-2025-68367, CVE-2025-68369, CVE-2025-68371, CVE-2025-68372, CVE-2025-68374, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380, CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732, CVE-2025-68733, CVE-2025-68740, CVE-2025-68741, CVE-2025-68742, CVE-2025-68744, CVE-2025-68746, CVE-2025-68753, CVE-2025-68755, CVE-2025-68756, CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68763, CVE-2025-68764, CVE-2025-68765, CVE-2025-68766, CVE-2025-68767, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68782, CVE-2025-68783, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68804, CVE-2025-68806, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71071, CVE-2025-71072, CVE-2025-71075, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71088, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71116, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71125, CVE-2025-71126, CVE-2025-71127, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71141, CVE-2025-71143, CVE-2025-71144, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2026-23209 Package Information: https://launchpad.net/ubuntu/+source/linux/6.8.0-110.110 https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1052.55 https://launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1054.57 https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1050.56 https://launchpad.net/ubuntu/+source/linux-gkeop/6.8.0-1037.40 https://launchpad.net/ubuntu/+source/linux-ibm/6.8.0-1051.51 https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-110.110.1 https://launchpad.net/ubuntu/+source/linux-aws-6.8/6.8.0-1052.55~22.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-110.110.1~22.04.1

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[USN-8177-1] Linux kernel vulnerabilities

========================================================================== Ubuntu Security Notice USN-8177-1 April 16, 2026 linux, linux-realtime vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-realtime: Linux kernel for Real-time systems Details: Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcode causing loss of integrity and confidentiality. (CVE-2024-36347) 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: - MIPS architecture; - PowerPC architecture; - User-Mode Linux (UML); - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Ublk userspace block driver; - Bluetooth drivers; - Character device driver; - TPM device driver; - Clock framework and drivers; - GPU drivers; - Hardware monitoring drivers; - Intel Trace Hub HW tracing drivers; - InfiniBand drivers; - Input Device core drivers; - Input Device (Mouse) drivers; - IOMMU subsystem; - Multiple devices driver; - Media drivers; - Network drivers; - Mellanox network drivers; - STMicroelectronics network drivers; - Ethernet team driver; - PA-RISC drivers; - Chrome hardware platform drivers; - x86 platform drivers; - SCSI subsystem; - SPI subsystem; - TCM subsystem; - Freescale USB OTG Transceiver Driver; - USB Type-C Connector System Software Interface driver; - Watchdog drivers; - BTRFS file system; - exFAT file system; - Ext4 file system; - F2FS file system; - FUSE (File system in Userspace); - HFS+ file system; - File systems infrastructure; - Network file system (NFS) server daemon; - File system notification infrastructure; - NTFS3 file system; - OCFS2 file system; - SMB network file system; - XFS file system; - User-space API (UAPI); - io_uring subsystem; - Scheduler infrastructure; - Shadow Call Stack mechanism; - Tracing infrastructure; - Memory management; - BPF subsystem; - CAIF protocol; - Ceph Core library; - Networking core; - Ethtool driver; - Handshake API; - HSR network protocol; - IPv4 networking; - IPv6 networking; - Multipath TCP; - Netfilter; - NET/ROM layer; - NFC subsystem; - Open vSwitch; - Rose network layer; - Network traffic control; - Sun RPC protocol; - Key management; - Landlock security; - STMicroelectronics SoC drivers; - USB sound devices; - KVM subsystem; (CVE-2025-68351, CVE-2025-68353, CVE-2025-68365, CVE-2025-68368, CVE-2025-68725, CVE-2025-68736, CVE-2025-68745, CVE-2025-68767, CVE-2025-68768, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68781, CVE-2025-68782, CVE-2025-68783, CVE-2025-68784, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68791, CVE-2025-68792, CVE-2025-68793, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68802, CVE-2025-68803, CVE-2025-68804, CVE-2025-68805, CVE-2025-68806, CVE-2025-68807, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-68822, CVE-2025-68823, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71070, CVE-2025-71071, CVE-2025-71072, CVE-2025-71073, CVE-2025-71075, CVE-2025-71076, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71080, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71099, CVE-2025-71100, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71115, CVE-2025-71116, CVE-2025-71117, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71124, CVE-2025-71125, CVE-2025-71126, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71143, CVE-2025-71146, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2025-71156, CVE-2025-71157, CVE-2026-23091, CVE-2026-23209) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 linux-image-6.17.0-1010-realtime 6.17.0-1010.11 Available with Ubuntu Pro linux-image-6.17.0-22-generic 6.17.0-22.22 linux-image-6.17.0-22-generic-64k 6.17.0-22.22 linux-image-generic 6.17.0-22.22 linux-image-generic-6.17 6.17.0-22.22 linux-image-generic-64k 6.17.0-22.22 linux-image-generic-64k-6.17 6.17.0-22.22 linux-image-realtime 6.17.0-1010.11 Available with Ubuntu Pro linux-image-realtime-6.17 6.17.0-1010.11 Available with Ubuntu Pro linux-image-virtual 6.17.0-22.22 linux-image-virtual-6.17 6.17.0-22.22 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-8177-1 CVE-2024-36347, CVE-2025-68351, CVE-2025-68353, CVE-2025-68365, CVE-2025-68368, CVE-2025-68725, CVE-2025-68736, CVE-2025-68745, CVE-2025-68767, CVE-2025-68768, CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68781, CVE-2025-68782, CVE-2025-68783, CVE-2025-68784, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788, CVE-2025-68791, CVE-2025-68792, CVE-2025-68793, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68802, CVE-2025-68803, CVE-2025-68804, CVE-2025-68805, CVE-2025-68806, CVE-2025-68807, CVE-2025-68808, CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-68822, CVE-2025-68823, CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068, CVE-2025-71069, CVE-2025-71070, CVE-2025-71071, CVE-2025-71072, CVE-2025-71073, CVE-2025-71075, CVE-2025-71076, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71080, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71099, CVE-2025-71100, CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71115, CVE-2025-71116, CVE-2025-71117, CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122, CVE-2025-71123, CVE-2025-71124, CVE-2025-71125, CVE-2025-71126, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138, CVE-2025-71140, CVE-2025-71143, CVE-2025-71146, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2025-71156, CVE-2025-71157, CVE-2026-23091, CVE-2026-23209 Package Information: https://launchpad.net/ubuntu/+source/linux/6.17.0-22.22 https://launchpad.net/ubuntu/+source/linux-realtime/6.17.0-1010.11

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[USN-8176-1] .NET vulnerabilities

========================================================================== Ubuntu Security Notice USN-8176-1 April 15, 2026 dotnet8, dotnet9, dotnet10 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in .NET. Software Description: - dotnet10: .NET CLI tools and runtime - dotnet8: .NET CLI tools and runtime - dotnet9: .NET CLI tools and runtime Details: Ludvig Pedersen discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to consume excessive resources, resulting in a denial of service. (CVE-2026-33116, CVE-2026-26171) Ludvig Pedersen and Kevin Jones discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to cause .NET to crash, resulting in a denial of service. (CVE-2026-32203) Ludvig Pedersen discovered that the System.Net.Mail component in .NET incorrectly handled certain inputs. An attacker could possibly use this issue to perform a network spoofing attack. (CVE-2026-32178) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 aspnetcore-runtime-10.0 10.0.6-0ubuntu1~25.10.1 aspnetcore-runtime-8.0 8.0.26-0ubuntu1~25.10.1 aspnetcore-runtime-9.0 9.0.15-0ubuntu1~25.10.1 dotnet-host-10.0 10.0.6-0ubuntu1~25.10.1 dotnet-host-8.0 8.0.26-0ubuntu1~25.10.1 dotnet-host-9.0 9.0.15-0ubuntu1~25.10.1 dotnet-hostfxr-10.0 10.0.6-0ubuntu1~25.10.1 dotnet-hostfxr-8.0 8.0.26-0ubuntu1~25.10.1 dotnet-hostfxr-9.0 9.0.15-0ubuntu1~25.10.1 dotnet-runtime-10.0 10.0.6-0ubuntu1~25.10.1 dotnet-runtime-8.0 8.0.26-0ubuntu1~25.10.1 dotnet-runtime-9.0 9.0.15-0ubuntu1~25.10.1 dotnet-sdk-10.0 10.0.106-0ubuntu1~25.10.1 dotnet-sdk-8.0 8.0.126-0ubuntu1~25.10.1 dotnet-sdk-9.0 9.0.116-0ubuntu1~25.10.1 dotnet-sdk-aot-10.0 10.0.106-0ubuntu1~25.10.1 dotnet-sdk-aot-9.0 9.0.116-0ubuntu1~25.10.1 dotnet10 10.0.106-10.0.6-0ubuntu1~25.10.1 dotnet8 8.0.126-8.0.26-0ubuntu1~25.10.1 dotnet9 9.0.116-9.0.15-0ubuntu1~25.10.1 Ubuntu 24.04 LTS aspnetcore-runtime-10.0 10.0.6-0ubuntu1~24.04.1 aspnetcore-runtime-8.0 8.0.26-0ubuntu1~24.04.1 dotnet-host-10.0 10.0.6-0ubuntu1~24.04.1 dotnet-host-8.0 8.0.26-0ubuntu1~24.04.1 dotnet-hostfxr-10.0 10.0.6-0ubuntu1~24.04.1 dotnet-hostfxr-8.0 8.0.26-0ubuntu1~24.04.1 dotnet-runtime-10.0 10.0.6-0ubuntu1~24.04.1 dotnet-runtime-8.0 8.0.26-0ubuntu1~24.04.1 dotnet-sdk-10.0 10.0.106-0ubuntu1~24.04.1 dotnet-sdk-8.0 8.0.126-0ubuntu1~24.04.1 dotnet-sdk-aot-10.0 10.0.106-0ubuntu1~24.04.1 dotnet10 10.0.106-10.0.6-0ubuntu1~24.04.1 dotnet8 8.0.126-8.0.26-0ubuntu1~24.04.1 Ubuntu 22.04 LTS aspnetcore-runtime-8.0 8.0.26-0ubuntu1~22.04.1 dotnet-host-8.0 8.0.26-0ubuntu1~22.04.1 dotnet-hostfxr-8.0 8.0.26-0ubuntu1~22.04.1 dotnet-runtime-8.0 8.0.26-0ubuntu1~22.04.1 dotnet-sdk-8.0 8.0.126-0ubuntu1~22.04.1 dotnet8 8.0.126-8.0.26-0ubuntu1~22.04.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8176-1 CVE-2026-26171, CVE-2026-32178, CVE-2026-32203, CVE-2026-33116 Package Information: https://launchpad.net/ubuntu/+source/dotnet10/10.0.106-10.0.6-0ubuntu1~25.10.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.126-8.0.26-0ubuntu1~25.10.1 https://launchpad.net/ubuntu/+source/dotnet9/9.0.116-9.0.15-0ubuntu1~25.10.1 https://launchpad.net/ubuntu/+source/dotnet10/10.0.106-10.0.6-0ubuntu1~24.04.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.126-8.0.26-0ubuntu1~24.04.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.126-8.0.26-0ubuntu1~22.04.1

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