Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Fixed a potential underflow in virtiotransportgetcredit. The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: c ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer reduces its...

Linux Distros Unpatched Vulnerability : CVE-2026-68255

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drm/virtio: bound EDID block reads to the response buffer virtiogetedidblock validates the read offset only against the device-supplied resp-size field, never...

Linux Distros Unpatched Vulnerability : CVE-2026-68411

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wifi: mac80211hwsim: clamp virtio RX length before skbput hwsimvirtiorxwork passes the virtqueue used-ring length reported by the device straight to skbput on a...

CVE-2026-47243

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines VMs that perform like containers. Prior to 3.31.0, the runtime-rs standalone virtio-fs path is vulnerable to a guest-root to host-root escape. In this configuration, Kata runs the host...

CVE-2026-47243

Kata Containers runtime-rs is affected by a guest-root to host-root escape in the virtio-fs path prior to version 3.31.0. In configurations using the host virtiofsd with --sandbox none and --seccomp none, a root-equivalent attacker inside the guest can bypass the guest virtio-fs client by taking ...

CVE-2026-64552

A flaw was found in the Linux kernel's virtio-net component. A malicious virtio backend can exploit an insufficient length check in the receivebig function, leading to an out-of-bounds write. This vulnerability can result in a denial of service DoS due to system instability or crashes...

SUSE CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

Security Bulletin: NVIDIA Networking Bluefield, ConnectX - July 2026

NVIDIA has released a software update for NVIDIA® Networking Bluefield, ConnectX. To protect your system, download and install the latest NVIDIA components from VIRTIO-Net. Go to NVIDIA Product Security. Details The following table summarizes the potential vulnerabilities that this security updat...

Linux Distros Unpatched Vulnerability : CVE-2026-64552

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose:...

CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

UBUNTU-CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64552

Summary (CVE-2026-64552) In the Linux kernel virtio-net, receive_big() does a length check against (big_packets_num_skbfrags + 1) * PAGE_SIZE, but a gap remains due to add_recvbuf_big() placing sg[1] after the padded vnet header. A malicious virtio backend can announce a length in that gap, causi...

CVE-2026-64552 virtio-net: fix len check in receive_big()

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

EUVD-2026-49603

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64552 virtio-net: fix len check in receive_big()

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64456

A flaw was found in the Linux kernel's virtio-rng driver. A malicious or buggy virtualized hardware random number generator virtio-rng backend can report an overly large data length to the guest operating system. This unchecked length can lead to an out-of-bounds read, causing the driver to acces...

CVE-2026-64490

A flaw was found in the Linux kernel's ALSA virtio sound driver. A malicious or buggy virtio device can provide invalid control metadata, such as an unknown control type or an oversized value count. The driver's control handling trusts this unvalidated metadata, leading to out-of-bounds access wh...

Linux Distros Unpatched Vulnerability : CVE-2026-64244

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drivers/base/memory: set mem-altmap after successful device registration If addmemoryblock fails at xastore under memory pressure for example, deviceunregister ...