CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

UBUNTU-CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74701 net/openvswitch: check Ethernet header length in key_extract()

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

EUVD-2026-64388

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74701

This vulnerability affects the Open vSwitch (OVS) component of the Linux kernel in key_extract() within net/openvswitch/flow.c. When a packet with the ETH_P_TEB protocol arrives on an ARPHRD_NONE device (e.g., TUN), the function unconditionally pulls Ethernet header bytes (MAC addresses and ether...

CVE-2026-74701 net/openvswitch: check Ethernet header length in key_extract()

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74701: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

Linux Distros Unpatched Vulnerability : CVE-2026-74701

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided...

CVE-2026-72444

A flaw was found in the Linux kernel's flowdissector component. When processing network packets on non-Ethernet devices, such as a TUN device in L3 mode, with specific traffic control filters, the flowdissector can attempt to read Ethernet header information that does not exist. This leads to the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099783)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099783 advisory. A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some...

CVE-2026-72444

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

CVE-2026-72444

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

UBUNTU-CVE-2026-72444

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

EUVD-2026-59343

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

CVE-2026-72444

CVE-2026-72444 relates to the Linux kernel flow_dissector which could read 12 bytes from eth_hdr(skb) when FLOW_DISSECTOR_KEY_ETH_ADDRS is requested, potentially operating on non-Ethernet or pathologic mac_header states (e.g., TUN in L3 mode). The fix gates the copy to only Ethernet devices (dev-...

CVE-2026-72444 flow_dissector: check device type before reading ETH_ADDRS

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

CVE-2026-72444 flow_dissector: check device type before reading ETH_ADDRS

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

PT-2026-72632

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the skb flow dissect function where it unconditionally reads 12 bytes from the Ethernet header when FLOW DISSECTOR KEY ETH ADDRS is requested. This occurs because the...

PT-2026-90130

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the tun get user function where the tun-align variable is used for both skb headroom and determining the amount of linear packet data. Open vSwitch OVS can propagate a...