CVE-2026-63807

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 memory management unit MMU. A malicious guest operating system could create a hugepage mapping that extends beyond the boundaries of its allocated memory slot. This improper handling of memory boundaries by KVM can lead t...

CVE-2026-12080

CVE-2026-12080 affects the QEMU Guest Agent (qga). A local, unprivileged user can exploit the guest-ssh-add-authorized-keys handler by manipulating symbolic links through a deterministic directory-symlink bypass or a TOCTOU file-symlink race, enabling ownership of arbitrary root-owned files/direc...

EUVD-2026-45857

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Disable AVIC IPI virtualization on Hygon Family 18h erratum 1235 Hygon Family 18h CPUs are derived from AMD Family 17h Zen1 silicon and share the same erratum 1235: hardware may read a stale IsRunning=1 bit during ICR...

CVE-2026-64115

CVE-2026-64115 affects the Linux kernel’s vsock/vmci component. The issue is a Use-After-Free caused when a peer resets a connection during the handshake, leading to a pending socket remaining in a listener’s pending list and the possibility of a crash/DoS. Root cause: vmci_transport_recv_connect...

CVE-2026-64115 vsock/vmci: fix UAF when peer resets connection during handshake

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

CVE-2026-64115

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

CVE-2026-63939

CVE-2026-63939 (Linux kernel, KVM SEV): The issue concerns computation of the maximum length for the in-GHCB scratch area in the GHCB shared buffer. Previously, KVM assumed the input length (@len) always represented the maximum required size for MMIO emulation; for PSC requests, @len is only the ...

CVE-2026-63863

The CVE-2026-63863 entry concerns the Linux kernel drm/gpusvm subsystem. The issue is a unbalanced unlock of gpusvm notifier_lock detected during drm_gpusvm_scan_mm(), where a path under err_free calls drm_gpusvm_notifier_lock() after unlocking, leading to a bad unlock balance warning. Connected ...

CVE-2026-63807

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

CVE-2026-63794

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sevdbgcrypt for ENCRYPT path In sevdbgcrypt, the per-iteration transfer length is bounded by the source page offset PAGESIZE - soff but not by the destination page offset PAGESIZE - doff. When doff...

CVE-2026-63822

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix warning when unbinding If there is an error during some initialization related to firmware, the buffers dp-txringi.txstatus are released. However this is released again when the device is unbinded ath11kpci, and...

EUVD-2026-45473

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

CVE-2026-63807

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

CVE-2026-63806

In the Linux kernel, the following vulnerability has been resolved: KVM: Replace guest-triggerable BUGON in ioeventfd datamatch with getunaligned Drop a BUGON that has been reachable since it was first added, way back in 2009, and instead use getunaligned to perform potentially-unaligned accesses...

PT-2026-61138

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A double free issue exists in the ath11k WiFi driver. When a firmware-related initialization error occurs, the buffers dp-tx ringi.tx status are released. These same buffers are released...

PT-2026-61123

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds access issue exists in the KVM x86 MMU when recovering hugepages in the shadow MMU. The system fails to verify if the base guest frame number gfn of the shadow page is...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 shadow paging mechanism. This vulnerability occurs when a host page directory entry PDE mapping is changed from within the guest, leading to an unexpected role mismatch in shadow paging. This mismatch can cause a...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine x86 shadow paging mechanism. This use-after-free vulnerability arises from incorrect handling of Guest Frame Numbers GFNs when guest page tables are modified. A local attacker with control over a guest virtual machine could...

PT-2026-60773

A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment PVE 9.x pve-manager 9.1.x before 9.1.9 and 8.4.x before 8.4.19; qemu-server 9.1.x before 9.1.7 and 8.4.x before 8.4.7; and pve-container 6.1.x before 6.1.3 and 5.3.x before 5.3.4 allows an attacker wit...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 shadow paging mechanism. This vulnerability occurs when a host page directory entry PDE mapping is changed from within the guest, leading to an unexpected role mismatch in shadow paging. This mismatch can cause a...