CVE-2026-52945 Revert "wireguard: device: enable threaded NAPI"

In the Linux kernel, the following vulnerability has been resolved: Revert "wireguard: device: enable threaded NAPI" This reverts commit 933466fc50a8e4eb167acbd0d8ec96a078462e9c which is commit db9ae3b6b43c79b1ba87eea849fd65efa05b4b2e upstream. We have had three independent production user report...

CVE-2026-52945 Revert "wireguard: device: enable threaded NAPI"

In the Linux kernel, the following vulnerability has been resolved: Revert "wireguard: device: enable threaded NAPI" This reverts commit 933466fc50a8e4eb167acbd0d8ec96a078462e9c which is commit db9ae3b6b43c79b1ba87eea849fd65efa05b4b2e upstream. We have had three independent production user report...

CVE-2026-52916

A flaw was found in the Linux kernel's batman-adv module. A remote attacker can exploit this vulnerability by sending specially crafted BATADVUNICASTFRAG packets, which are designed to contain other fragmented packets. This 'fragments in fragments' scenario causes the kernel to recursively proces...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: virtio-net: The issue of checking the received length in large packets has been fixed. Since commit 4959aebba8c0 “virtio-net: Use the MTU size as the buffer length for large packets”, when the guest gso is disabled, the allocated...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net: nfc: nci: Fix parameter validation for packet data Since commit 9c328f54741b “net: nfc: nci: Add parameter validation for packet data”, communication with nci/nfc chips no longer works. The mentioned commit attempted to fix...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In the inet section, RAW sockets that use IPPROTORAW must drop incoming ICMP packets. Yizhou Zhao reported that simply having a RAW socket with the protocol set to IPPROTORAW 255 was dangerous. The code example: socketAFINET,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: atlantic: Fixed handling of fragment overflow in the RX path. The atlantic driver can receive packets with more than MAXSKBFRAGS 17 fragments when handling large multi-descriptor packets. This causes an out-of-bounds writ...

CVE-2026-52912

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfqueue: hold bridge skb-dev while queued brpassframeup rewrites skb-dev from the ingress port to the bridge master before queueing bridge LOCALIN packets. NFQUEUE only holds references on state.in/out and bridge...

CVE-2026-52934

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tvlv: reject oversized TVLV packets batadvtvlvcontainerogmappend builds a TVLV packet section from the tvlv.containerlist. The total size of this section is computed by batadvtvlvcontainerlistsize, which sums the size...

CVE-2026-52940

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

CVE-2026-52934

The CVE-2026-52934 entry involves the Linux kernel’s batman-adv TVLV handling. The root cause is batadv_tvlv_container_list_size() using a 16-bit accumulator, which can wrap when the total size exceeds U16_MAX, causing an undersized allocation in batadv_tvlv_container_ogm_append() and a subsequen...

CVE-2026-52934

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tvlv: reject oversized TVLV packets batadvtvlvcontainerogmappend builds a TVLV packet section from the tvlv.containerlist. The total size of this section is computed by batadvtvlvcontainerlistsize, which sums the size...

CVE-2026-52934 batman-adv: tvlv: reject oversized TVLV packets

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tvlv: reject oversized TVLV packets batadvtvlvcontainerogmappend builds a TVLV packet section from the tvlv.containerlist. The total size of this section is computed by batadvtvlvcontainerlistsize, which sums the size...

CVE-2026-52931

CVE-2026-52931 — Linux kernel (batman-adv tp_meter): The vulnerability arises when batadv_tp_recv_ack() or batadv_tp_stop() are invoked with a tp_vars in the BATADV_TP_RECEIVER role. In that case, code paths access sender-only members that were never initialized, causing undefined behavior. The f...

CVE-2026-52912 netfilter: nf_queue: hold bridge skb->dev while queued

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfqueue: hold bridge skb-dev while queued brpassframeup rewrites skb-dev from the ingress port to the bridge master before queueing bridge LOCALIN packets. NFQUEUE only holds references on state.in/out and bridge...

CVE-2026-52912

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfqueue: hold bridge skb-dev while queued brpassframeup rewrites skb-dev from the ingress port to the bridge master before queueing bridge LOCALIN packets. NFQUEUE only holds references on state.in/out and bridge...

PT-2026-51878

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netem component of the network scheduler where the queue limit check in the netem enqueue function incorrectly uses q-t len. This variable only counts packets with...

Linux Distros Unpatched Vulnerability : CVE-2026-52940

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb,...

PT-2026-51727

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the batman-adv module where the batadv tvlv container list size function uses a u16 return type and accumulator. When the accumulated size of registered containers...

Linux Distros Unpatched Vulnerability : CVE-2026-52934

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: tvlv: reject oversized TVLV packets batadvtvlvcontainerogmappend builds a TVLV packet section from the tvlv.containerlist. The total size of this...