Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

A issue was discovered in the x86 KVM subsystem of the Linux kernel before version 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVMVCPUPREEMPTED situations...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A issue was discovered in include/asm-generic/tlb.h in the Linux kernel before version 5.19. Due to a race condition between unmapmappingrange and munmap, a device driver can free a page while it still has stale TLB entries. This only occurs in situations involving VMPFNMAP VMAs...

Astra Linux – Vulnerability in Linux 5.10, Linux

The mm/mremap.c file in the Linux kernel before version 5.13.3 contains a use-after-free issue due to a stale Translation Look-And-Reduce TLB table, as the rmap lock is not held during a PUD move...

EUVD-2026-55474

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Bump asidgeneration on CPU online to avoid ASID collision after hotplug If a vCPU stays scheduled out or blocked while the last pCPU it ran on goes through a hotplug cycle online-offline-online, and the vCPU then resume...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation TLBI operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local...

SUSE CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

UBUNTU-CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

EUVD-2026-48656

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64229

Summary: CVE-2026-64229 affects the Linux kernel on x86 with regard to TLB broadcast invalidation and PCID. The issue arises in the global ASID handling path when INVLPGB (invalidations) is used with a non-zero PCID while CR4.PCIDE is not set, which could trigger a #GP (general protection fault) ...

CVE-2026-63875

A flaw was found in the Linux kernel, specifically within the arm64 architecture's Translation Lookaside Buffer TLB management. When a Page Middle Directory PMD table was unshared, the TLB flush operation did not correctly invalidate entries in the walk cache. This oversight could leave stale PMD...

SUSE CVE-2026-53374

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpubocreatekernel does not zero-initialize the buffer, when a single PTE is written the TLB may speculativel...

EUVD-2026-45760

In the Linux kernel, the following vulnerability has been resolved: arm64: tlb: Flush walk cache when unsharing PMD tables When hugepmdunshare is called to unshare a PMD table, the tlbunsharepmdptdesc function sets tlb-unsharedtables=true but the aarch64 tlbflush only checked tlb-freedtables to...

CVE-2026-53374

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpubocreatekernel does not zero-initialize the buffer, when a single PTE is written the TLB may speculativel...