CVE-2026-74666

A race condition in the Linux kernel packet subsystem (AF_PACKET/TPACKET) allows __packet_rcv_has_room() to dereference stale or NULL ring storage . The root cause is that packet_set_ring() published the tpacket receive hook (po->prot_hook.func) after releasing sk_receive_queue.lock, so packet...

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-2026-74667

CVE-2026-74667 is an out-of-bounds read in the Linux kernel's net/packet subsystem. The packet_parse_headers() function fails to reset skb->mac_header for protocol-bound SOCK_RAW sockets, SOCK_DGRAM frames, and the legacy SOCK_PACKET path. When these frames traverse the PACKET_QDISC_BYPASS tra...

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 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...

SUSE CVE-2026-74582

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

CVE-2026-74667: Undefined Security Weakness

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: Undefined Security Weakness

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...

PT-2026-79672

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the net/packet component where the packet parse headers function fails to reset the MAC header for protocol-bound SOCK RAW sockets, SOCK DGRAM frames, and the legacy...

PT-2026-79671

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where packet set ring updates the RX ring state under sk receive queue.lock but publishes the tpacket receive mode through po-prot hook.func after releasing that lock. Th...

AZL-96995 CVE-2026-74582 affecting package kernel for versions less than 6.6.152.1-1

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

PT-2026-79403

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the packet handling of the Linux kernel where packet snd and packet sendmsg spkt read the hard header len value multiple times during the allocation and construction o...

CVE-2026-20319

creationtimestamp| type| source ---|---|--- 2026-08-20 14:25:17+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3mtjh6z3l4k26 2026-08-24 16:45:29+00:00| seen| https://www.cert.dk/news/2026-08-24/Cisco-lapper-seks-kritiske-saarbaarheder-med-maksimal-CVSS-score...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100093)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100093 advisory. In the Linux kernel, the following vulnerability has been resolved: net: fix fanout UAF in packetrelease via NETDEVUP race packetrelease has a race window where...

SUSE CVE-2026-68338

In the Linux kernel, the following vulnerability has been resolved: net/packet: avoid fanout hook re-registration after unregister packetsetring temporarily detaches a socket from packet delivery while reconfiguring its ring. It records the previous running state, clears po-num, unregisters the...

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...

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...