CVE-2026-80742

A flaw was found in the Linux kernel's afpacket Address Family Packet component. A local attacker could exploit this vulnerability by sending specially crafted zero-byte packets through the TPACKET ring buffer on devices without a hard header. This improper handling of zero-length packets can cau...

PT-2026-116722

In the Linux kernel, the following vulnerability has been resolved: packet: use ubuf info completion for TX RING packets tpacket snd sends skbs with frags pointing into its ring slots. Slots are released when skb-destructor is called. A call to skb orphan calls skb-destructor before the skb is...

PT-2026-106562

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description A race condition exists in the tpacket rcv function within the net/packet module. When processing V1 or V2 ring slots, the system claims a slot before converting the virtio-net header. If t...

PT-2026-98758

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the af packet module where the tpacket parse header function incorrectly casts the user-provided tpacket hdr.tp len variable, which is a u32 unsigned 32-bit integer, t...

Linux Distros Unpatched Vulnerability : CVE-2026-80742

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at...

AZL-99036 CVE-2026-80742 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80742

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80742 af_packet: Don't send zero-byte data in tpacket_snd().

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

PT-2026-90881

In the Linux kernel, the following vulnerability has been resolved: af packet: Don't send zero-byte data in tpacket snd. syzbot reported a WARNING in dev queue xmit triggered via tpacket snd: skb assert len WARNING: at include/linux/skbuff.h:2753 skb assert len WARNING: at dev queue...

CVE-2026-74666

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-2026-74666

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-2026-74666 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-2026-74666

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-2026-74666 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...

PT-2026-79673

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the tpacket snd function where dev-hard header len is read independently during skb allocation and header construction within tpacket fill skb. Concurrent netdevice...

Linux Distros Unpatched Vulnerability : CVE-2026-74666

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - packet: synchronize pressure clearing with ring reconfiguration packetsetring updates the RX ring state under skreceivequeue.lock, but used to publish the tpack...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-31700

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer...

CVE-2026-31700

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...

CVE-2026-31700

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...