USN-8661-3: Linux kernel vulnerabilities

Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject packets. CVE-2025-275...

SUSE CVE-2026-72043

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix missing dirty page tracking in pte,pmdwrprotect When hardware page table walker PTW is enabled on LoongArch, the CPU may set PAGEDIRTY directly in the page table entry during a write TLB miss, without going through...

CVE-2026-80560

A flaw was found in the Linux kernel, specifically within the openrisc architecture's signal handling. An unprivileged local attacker can exploit a vulnerability in the restoresigcontext function by crafting a malicious signal frame. This allows the attacker to disable the Data Memory Management...

EUVD-2026-66466

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full...

SUSE CVE-2026-72013

In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent NULL pointer dereference in machinekexecprepare A NULL pointer dereference issue is noticed in riscv's machinekexecprepare, where image-segmenti.buf might be NULL and copied unchecked. The NULL buf comes from...

SUSE CVE-2026-80551

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full...

SPA: Securing Persistent LLM Agents across Queries with Plan-First Information-Flow Control

Large language model LLM agents increasingly operate over untrusted webpages, documents, tools, and persistent states while exercising authority over security-sensitive resources. Existing defenses typically protect either planning or individual tool interactions, but persistent agents face a...

CVE-2026-80555

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Free all memory if cpinit fails The routine cpfree is called to unpin/free any memory once an I/O is completed successfully, or if cpprefetch fails. But if cpinit fails, and cp-initialized is not enabled, the same...

CVE-2026-80584

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qethsnmpcommand and qethl3arpquery allocate a buffer sized by a user-supplied length udatalen without checking a lower bound, then set udataoffset to a fixed...

UBUNTU-CVE-2026-80548

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Selectively expand iomutex The iomutex was defined to serialize the ioregions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of race...

CVE-2026-80554

CVE-2026-80554 affects the Linux kernel's s390/vfio_ccw subsystem. The root cause is the recursive processing of channel programs: the vfio-ccw logic splits channel programs into segments at each Transfer-In-Channel (TIC) CCW , and the combined segment count contributes to a global limit on CCWs ...

CVE-2026-80551 s390/vfio_ccw: Ensure first IDAW remains constant

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full...

CVE-2026-80547

This vulnerability affects the Linux kernel 's s390/vfio_ccw subsystem (Virtual Function Interface for Channel-Word devices on the s390 architecture). The root cause is a missing lock on the CRW (Control Region Word) region, which handles asynchronous hardware events; without it, the list of payl...

Linux Distros Unpatched Vulnerability : CVE-2026-80547

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - s390/vfioccw: Implement a crw lock Unlike the channelprogram struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies...

Ubuntu 26.04 LTS : Linux kernel vulnerabilities (USN-8660-1)

The remote Ubuntu 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8660-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

USN-8630-5 linux-raspi, linux-raspi-realtime vulnerabilities

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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network drivers; - File systems infrastructur...

Nettacker v0.4.1

OWASP Nettacker DISCLAIMER THIS SOFTWARE WAS CREATED FOR AUTOMATED PENETRATION TESTING AND INFORMATION GATHERING. YOU MUST USE THIS SOFTWARE IN A RESPONSIBLE AND ETHICAL MANNER. DO NOT TARGET SYSTEMS OR APPLICATIONS WITHOUT OBTAINING PERMISSIONS OR CONSENT FROM THE SYSTEM OWNERS OR ADMINISTRATORS...

The vulnerability of the `compat_arm_syscall()` function in the `arch/arm64/kernel/sys_compat.c` module allows a hacker to trigger a service failure on the ARM 64-bit kernel-based Linux operating system.

The vulnerability of the compatarmsyscall function in the arch/arm64/kernel/syscompat.c module of the Linux operating system’s 64-bit ARM architecture kernel is related to insufficient checking of input data. Exploiting this vulnerability could allow an attacker to cause a service failure...

ROS-20260825-73-0025

The vulnerability of the nestedvmcb02preparecontrol function in the arch/x86/kvm/svm/nested.c module of the virtualization subsystem on the x86 kernel of the Linux operating system is related to an uncontrolled and exploitable condition. Exploiting this vulnerability could allow a attacker to cau...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: arm64: sme: Use STR P to clear the FFR context field in streaming SVE mode The FFR is a predicate register whose size can range from 16 to 256 bits, depending on the configured vector length. When saving the SVE state in streamin...