CVE-2026-74667

In the Linux kernel, the following vulnerability has been resolved: net/packet: reset the MAC header on the packet-socket transmit path packetparseheaders resets the MAC header only for a SOCKRAW frame whose socket did not bind a protocol. A protocol-bound SOCKRAW socket, any SOCKDGRAM frame, and...

CVE-2026-74667 net/packet: reset the MAC header on the packet-socket transmit path

In the Linux kernel, the following vulnerability has been resolved: net/packet: reset the MAC header on the packet-socket transmit path packetparseheaders resets the MAC header only for a SOCKRAW frame whose socket did not bind a protocol. A protocol-bound SOCKRAW socket, any SOCKDGRAM frame, and...

CVE-2026-74666 packet: synchronize pressure clearing with ring reconfiguration

In the Linux kernel, the following vulnerability has been resolved: packet: synchronize pressure clearing with ring reconfiguration packetsetring updates the RX ring state under skreceivequeue.lock, but used to publish the tpacket receive mode through po-prothook.func after releasing that lock...

CVE-2026-74667

CVE-2026-74667 is a Linux kernel out-of-bounds read in the net/packet subsystem. The function packet_parse_headers() only resets skb->mac_header for unbound SOCK_RAW sockets, leaving it unset for protocol-bound SOCK_RAW, SOCK_DGRAM, and SOCK_PACKET frames. When such frames are transmitted via ...

EUVD-2026-64354

In the Linux kernel, the following vulnerability has been resolved: net/packet: reset the MAC header on the packet-socket transmit path packetparseheaders resets the MAC header only for a SOCKRAW frame whose socket did not bind a protocol. A protocol-bound SOCKRAW socket, any SOCKDGRAM frame, and...

CVE-2026-74666

This vulnerability affects the Linux kernel AF_PACKET (packet socket) subsystem. A race condition exists in packet_set_ring(): the tpacket receive mode was published via po->prot_hook.func after releasing sk_receive_queue.lock, while the RX ring state was already updated under that lock. This ...

PT-2026-79671

In the Linux kernel, the following vulnerability has been resolved: packet: synchronize pressure clearing with ring reconfiguration packet set ring updates the RX ring state under sk receive queue.lock, but used to publish the tpacket receive mode through po-prot hook.func after releasing that...

PT-2026-79672

In the Linux kernel, the following vulnerability has been resolved: net/packet: reset the MAC header on the packet-socket transmit path packet parse headers resets the MAC header only for a SOCK RAW frame whose socket did not bind a protocol. A protocol-bound SOCK RAW socket, any SOCK DGRAM frame...

PT-2026-79403

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hard header len in non-ring send paths packet snd reads dev-hard header len multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example...

CVE-2026-20319

creationtimestamp| type| source ---|---|--- 2026-08-20 14:25:17+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3mtjh6z3l4k26...

SUSE CVE-2026-53006

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6rcv Caching saddr and daddr before pskbpull is problematic since skb-head can change. Remove these temporary variables: - We only access &ipv6hdrskb-saddr and &ipv6hdrskb-daddr when netdbgratelimit...

EUVD-2026-39314

In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skbiserrqueue treats PACKETOUTGOING as the sole marker for an skb from skerrorqueue. That assumption is not true for AFPACKET sockets: outgoing packet taps are also delivered to...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the newly added packettype by reading the...

CVE-2026-31700

A flaw was found in the Linux kernel. A Time-of-check to Time-of-use TOCTOU race condition exists in the tpacketsnd function when PACKETVNETHDR is enabled. A local user can exploit this by modifying the vnethdr fields in the mmap'd TX ring buffer between validation and use, thereby bypassing safe...

CVE-2026-43036

A flaw was found in the Linux kernel's networking subsystem. An attacker injecting specially crafted packets through PFPACKET paths could trigger an uninitialized value read when processing TCPv4 Generic Segmentation Offload GSO packets. This vulnerability, specifically in the gsofeaturescheck...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013791)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013791 advisory. In the Linux kernel, the following vulnerability has been resolved: can: hi311x: populate ndochangemtu to prevent buffer overflow Sending an PFPACKET allows to bypa...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010853)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010853 advisory. In the Linux kernel, the following vulnerability has been resolved: can: mcbausb: populate ndochangemtu to prevent buffer overflow Sending an PFPACKET allows to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002613)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002613 advisory. In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanoutadd from setsockopt and bind on an AFPACKET socket. This issue...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003320)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003320 advisory. In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanoutadd from setsockopt and bind on an AFPACKET socket. This issue...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: etases58x: It is necessary to populate ndochangemtu to prevent buffer overflows. Sending a PFPACKET allows bypassing the CAN framework logic and directly reaching the xmit function of a CAN driver. The only check performed by the...