Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

The Cross-Privilege Spectre v2 vulnerability allows attackers to bypass all deployed mitigations, including the recently introduced FineIBT, and to leak arbitrary Linux kernel memory on Intel systems...

New Interrupt Injection Attack Can Bypass Spectre v2 Defenses on Intel and AMD CPUs

An unprivileged Linux program can time a hardware interrupt to land in the gap between a processor sanitizing its branch predictor and the kernel using it, re-poisoning the predictor after the defense has run. MIT CSAIL researchers Daniël Trujillo and Mengjia Yan named the technique INTERRUPT...

CVE-2026-64507

A flaw was found in the Linux kernel. This vulnerability involves an incomplete defense against Spectre-v2, a type of attack that can expose sensitive information by exploiting how modern processors predict future operations. Specifically, when the Berkeley Packet Filter BPF Just-In-Time JIT...

CVE-2026-64507

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip enabling the IBPB flush if the BPF...

UBUNTU-CVE-2026-64507

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip enabling the IBPB flush if the BPF...

CVE-2026-64507

CVE-2026-64507 : In the Linux kernel, a hardening tied to Spectre-v2 mitigations enables an IBPB flush during BPF JIT allocation/memory reuse when BPF-JIT is in use. The change guards the IBPB enabling under CONFIG_BPF_JIT, and skips enabling if the BPF dispatcher already uses a retpoline sequenc...

CVE-2026-64507 x86/bugs: Enable IBPB flush on BPF JIT allocation

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip enabling the IBPB flush if the BPF...

CVE-2026-64507 x86/bugs: Enable IBPB flush on BPF JIT allocation

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip enabling the IBPB flush if the BPF...

Linux Distros Unpatched Vulnerability : CVE-2026-64507

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flus...

The vulnerability of the spectre_v2_select_mitigation() function in the arch/x86/kernel/cpu/bugs.c module, which is part of the Linux operating system’s kernel support for x86 platforms, allows a hacker to trigger a system failure.

The vulnerability of the spectrev2selectmitigation function in the arch/x86/kernel/cpu/bugs.c module of the Linux operating system’s kernel for x86 platforms is related to state management errors. Exploiting this vulnerability could allow an attacker to cause a system failure...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004434)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004434 advisory. A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl function, where it can be used to enable indirect branch speculation after it has been disabled. Thi...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004372)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004372 advisory. A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB Indirect Branch Prediction Barrier. The IBPB mitigation will be disabl...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002610)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002610 advisory. The spectrev2selectmitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003204)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003204 advisory. The spectrev2selectmitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it...

Branch Predictor Isolation in KVM-QEMU

Summary Researchers claim new KVM-QEMU primitives allow exploitation of Spectre V2 resulting in information leakage in various cloud scenarios. KVM-QEMU is a combination of KVM Kernel-based Virtual Machine, a Linux kernel module that enables hardware-assisted virtualization and Quick Emulator QEM...

microcode_ctl: From CVEorg collector

New Spectre-v2 attack classes have been discovered within CPU architectures that enable self-training exploitation of speculative execution within the same privilege domain. These novel techniques bypass existing hardware and software mitigations, including IBPB, eIBRS, and BHINO, by leveraging...

Linux Distros Unpatched Vulnerability : CVE-2020-10767

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB Indirect Branch Prediction Barrier. The IBPB mitigation will be...

Linux Distros Unpatched Vulnerability : CVE-2020-10768

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl function, where it can be used to enable indirect branch speculation after it has been disabled...

Linux Distros Unpatched Vulnerability : CVE-2022-2196

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1...

microcode_ctl: From CVEorg collector

New Spectre-v2 attack classes have been discovered within CPU architectures that enable self-training exploitation of speculative execution within the same privilege domain. These novel techniques bypass existing hardware and software mitigations, including IBPB, eIBRS, and BHINO, by leveraging...