USN-7910-2: Linux kernel (Azure) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

USN-7909-4 linux-gcp, linux-gke, linux-gkeop 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

USN-7909-4: Linux kernel 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

SUSE CVE-2025-40226

In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Account for failed debug initialization When the SCMI debug subsystem fails to initialize, the related debug root will be missing, and the underlying descriptor will be NULL. Handle this fault condition in the...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7909-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7909-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

GHSA-2CGV-28VR-RV6J libcrux incorrectly calculates on aarch64

On platforms without the core::arch::aarch64::vxarqu64 intrinsic, an unverified fallback in libcrux-intrinsics v0.0.3 passed incorrect arguments and produced wrong results. This corrupted SHA-3 digests and caused libcrux-ml-kem and libcrux-ml-dsa to sample incorrectly, yielding incorrect shared...

libcrux incorrectly calculates on aarch64

On platforms without the core::arch::aarch64::vxarqu64 intrinsic, an unverified fallback in libcrux-intrinsics v0.0.3 passed incorrect arguments and produced wrong results. This corrupted SHA-3 digests and caused libcrux-ml-kem and libcrux-ml-dsa to sample incorrectly, yielding incorrect shared...

CVE-2025-40226

In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Account for failed debug initialization When the SCMI debug subsystem fails to initialize, the related debug root will be missing, and the underlying descriptor will be NULL. Handle this fault condition in the...

UBUNTU-CVE-2025-40226

In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Account for failed debug initialization When the SCMI debug subsystem fails to initialize, the related debug root will be missing, and the underlying descriptor will be NULL. Handle this fault condition in the...

CVE-2025-40266

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value U32MAX - sizeofstruct ffacompositememregion + 1, U32MAX is...

EUVD-2025-201191

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value U32MAX - sizeofstruct ffacompositememregion + 1, U32MAX is...

CVE-2025-40226

CVE-2025-40226: In the Linux kernel, the SCMI firmware debug subsystem may fail to initialize, leaving the debug root missing and the descriptor NULL. The fix adds fault handling in SCMI debug helpers that maintain metrics counters to cope with a NULL descriptor when initialization fails.

CVE-2025-40226 firmware: arm_scmi: Account for failed debug initialization

In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Account for failed debug initialization When the SCMI debug subsystem fails to initialize, the related debug root will be missing, and the underlying descriptor will be NULL. Handle this fault condition in the...

kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

In the Linux kernel, the following vulnerability has been resolved: firmware: armscpi: Ensure scpiinfo is not assigned if the probe fails When scpi probe fails, at any point, we need to ensure that the scpiinfo is not set and will remain NULL until the probe succeeds. If it is not taken care, the...

USN-7910-1: Linux kernel (Azure FIPS) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

USN-7909-3: Linux kernel (FIPS) 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

USN-7909-3 linux-aws-fips, linux-fips, linux-gcp-fips 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

USN-7909-2 linux-intel-iot-realtime, linux-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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

USN-7909-2: Linux kernel (Real-time) 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

USN-7909-1 linux, linux-aws, linux-aws-5.15, linux-gcp-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, linux-xilinx-zynqmp 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...