CVE-2026-46319

The CVE-2026-46319 entry describes a race in the Linux kernel net/sched act_ct where rcu_read_lock is exited before refcount_inc_not_zero on ct_ft, allowing a UAF when ct_ft is freed during cleanup. This creates a local privilege-escalation risk as an attacker could observe or trigger the race wi...

CVE-2026-46318 Revert "mm/hugetlbfs: update hugetlbfs to use mmap_prepare"

In the Linux kernel, the following vulnerability has been resolved: Revert "mm/hugetlbfs: update hugetlbfs to use mmapprepare" This reverts commit ea52cb24cd3f "mm/hugetlbfs: update hugetlbfs to use mmapprepare" with conflict resolution to account for changes in commit ea52cb24cd3f "mm/hugetlbfs:...

EUVD-2026-35408

In the Linux kernel, the following vulnerability has been resolved: Revert "mm/hugetlbfs: update hugetlbfs to use mmapprepare" This reverts commit ea52cb24cd3f "mm/hugetlbfs: update hugetlbfs to use mmapprepare" with conflict resolution to account for changes in commit ea52cb24cd3f "mm/hugetlbfs:...

CVE-2026-46318

CVE-2026-46318 concerns a Linux kernel hugetlbfs issue: a revert of the mmap_prepare-related change due to a potential VMA lock leak after a failed allocation. The fix reverts the change to allow rework, while attempting to preserve VMA flag changes. Connected sources consistently describe the ro...

domctl lock open to abuse

ISSUE DESCRIPTION To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controlling a particular guest. Some of these operations may not be executed in parallel, so a system-wide lock is used. The way that lock is acquired is,...

CVE-2026-46317 KVM: arm64: Reassign nested_mmus array behind mmu_lock

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...

EUVD-2026-35406

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...

CVE-2026-46317

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...

CVE-2026-46317

CVE-2026-46317 concerns the Linux kernel KVM on arm64. A traversal of the array kvm->arch.nested_mmus[] occurs under kvm->mmu_lock, while kvm_vcpu_init_nested() reallocates the array and frees the old buffer with only kvm->arch.config_lock held. The fix moves the allocation outside the m...

SUSE CVE-2026-46299

In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix held lock freed on hfsplusfillsuper hfsplusfillsuper calls hfsfindinit to initialize a search structure, which acquires tree-treelock. If the subsequent call to hfspluscatbuildkey fails, the function jumps to the...

CVE-2026-46319

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: Only release RCU read lock after ctft When looking up a flow table in actct in tcfctflowtableget, rhashtablelookupfast internally opens and closes an RCU read critical section before returning ctft. The...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel. This vulnerability stems from the tcfctflowtableget function in actct, which releases the RCU read lock within the...

Linux Distros Unpatched Vulnerability : CVE-2026-46299

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - hfsplus: fix held lock freed on hfsplusfillsuper hfsplusfillsuper calls hfsfindinit to initialize a search structure, which acquires tree-treelock. If the...

PT-2026-48241

Name of the Vulnerable Software and Affected Versions Xen affected versions not specified Description HVM guest I/O port accesses require either emulation or translation. These translations are managed by the device model through 'XEN DOMCTL ioport mapping'. The linked list used for these...

PT-2026-48244

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controlling a particular guest. Some of these...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a backport of patch ea52cb24cd3f. This patch improperly handled the hugetlb VMA lock allocation,...

PT-2026-47755

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where hugetlb VMA lock allocation is incorrectly handled during the mmap prepare stage. If an allocation fails after mmap prepare is called, it may...

CVE-2026-46318: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Revert "mm/hugetlbfs: update hugetlbfs to use mmapprepare" This reverts commit ea52cb24cd3f "mm/hugetlbfs: update hugetlbfs to use mmapprepare" with conflict resolution to account for changes in commit ea52cb24cd3f "mm/hugetlbfs:...

CVE-2026-46318

In the Linux kernel, the following vulnerability has been resolved: Revert "mm/hugetlbfs: update hugetlbfs to use mmapprepare" This reverts commit ea52cb24cd3f "mm/hugetlbfs: update hugetlbfs to use mmapprepare" with conflict resolution to account for changes in commit ea52cb24cd3f "mm/hugetlbfs:...

CVE-2026-46317

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...