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USN-7640-1: Linux kernel (IoT) vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) 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; - PowerPC architecture; - x86 architecture; - Block layer subsystem; - Drivers core; - Network block device driver; - Character device driver; - iSCSI Boot Firmware Table Attributes driver; - GPU drivers; - HID subsystem; - InfiniBand drivers; - Media drivers; - MemoryStick subsystem; - Network drivers; - NTB driver; - PCI subsystem; - PPS (Pulse Per Second) driver; - PTP clock framework; - RapidIO drivers; - Real Time Clock drivers; - SCSI subsystem; - SLIMbus drivers; - QCOM SoC drivers; - Trusted Execution Environment drivers; - Thermal drivers; - USB DSL drivers; - USB Device Class drivers; - USB core drivers; - USB Gadget drivers; - USB Host Controller drivers; - Renesas USBHS Controller drivers; - File systems infrastructure; - BTRFS file system; - Ceph distributed file system; - JFS file system; - NILFS2 file system; - UBI file system; - KVM subsystem; - L3 Master device support module; - Netfilter; - Process Accounting mechanism; - printk logging mechanism; - Scheduler infrastructure; - Tracing infrastructure; - Memory management; - 802.1Q VLAN protocol; - Asynchronous Transfer Mode (ATM) subsystem; - B.A.T.M.A.N. meshing protocol; - Bluetooth subsystem; - Networking core; - IPv4 networking; - IPv6 networking; - Logical Link layer; - NFC subsystem; - Open vSwitch; - Rose network layer; - Network traffic control; - Sun RPC protocol; - Wireless networking; - Tomoyo security module; - USB sound devices; (CVE-2025-21753, CVE-2025-22071, CVE-2025-21898, CVE-2025-22073, CVE-2024-58072, CVE-2025-21905, CVE-2024-57986, CVE-2025-21749, CVE-2024-58020, CVE-2025-21806, CVE-2025-21917, CVE-2025-21719, CVE-2025-21835, CVE-2025-21735, CVE-2025-21922, CVE-2025-21781, CVE-2025-21904, CVE-2025-39735, CVE-2025-21715, CVE-2025-22007, CVE-2024-58010, CVE-2024-58052, CVE-2025-22021, CVE-2025-21996, CVE-2025-22086, CVE-2025-21971, CVE-2023-53034, CVE-2025-21721, CVE-2025-22035, CVE-2025-21722, CVE-2025-22045, CVE-2025-21935, CVE-2024-58069, CVE-2024-58017, CVE-2025-21823, CVE-2025-21959, CVE-2024-26996, CVE-2024-58058, CVE-2025-21846, CVE-2024-58009, CVE-2025-22018, CVE-2025-21926, CVE-2024-57980, CVE-2025-21728, CVE-2025-21909, CVE-2025-21992, CVE-2024-26689, CVE-2024-57973, CVE-2025-21772, CVE-2024-56599, CVE-2025-21791, CVE-2025-21718, CVE-2025-21866, CVE-2025-21708, CVE-2024-58055, CVE-2025-21957, CVE-2025-37937, CVE-2025-21704, CVE-2024-58093, CVE-2025-21877, CVE-2025-22054, CVE-2023-52664, CVE-2025-21776, CVE-2024-50055, CVE-2025-21765, CVE-2025-21862, CVE-2025-21865, CVE-2024-58014, CVE-2021-47211, CVE-2025-21956, CVE-2025-21736, CVE-2021-47191, CVE-2025-21647, CVE-2025-21920, CVE-2024-58051, CVE-2025-21782, CVE-2025-21934, CVE-2023-52741, CVE-2025-38637, CVE-2025-21925, CVE-2025-21763, CVE-2025-22063, CVE-2024-26982, CVE-2025-23136, CVE-2024-57979, CVE-2025-22079, CVE-2025-22005, CVE-2025-21785, CVE-2025-21859, CVE-2024-58085, CVE-2025-21764, CVE-2024-53168, CVE-2024-58002, CVE-2025-21928, CVE-2025-21914, CVE-2024-56551, CVE-2024-58007, CVE-2024-58001, CVE-2024-57981, CVE-2024-58083, CVE-2025-21762, CVE-2025-21910, CVE-2025-21760, CVE-2025-21948, CVE-2025-21993, CVE-2024-58090, CVE-2025-21991, CVE-2025-21848, CVE-2025-21811, CVE-2024-58071, CVE-2025-21787, CVE-2025-21731, CVE-2025-21814, CVE-2025-22004, CVE-2025-21744, CVE-2025-21858, CVE-2025-21916, CVE-2023-52927, CVE-2025-22020, CVE-2025-21871, CVE-2025-21761, CVE-2024-58063, CVE-2024-57977)

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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.