DEBIAN-CVE-2026-81000

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

CVE-2026-81000

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

CVE-2026-81000

CVE-2026-81000 affects the Linux kernel TUN/TAP driver . The root cause is an integer underflow in tun_get_user(): when Open vSwitch (OVS) propagates an oversized headroom request from another port, SKB_MAX_HEAD(align) underflows, causing tun_alloc_skb() to place skb->data outside the allocate...

CVE-2026-81000

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

CVE-2026-81000 net: tun: bound receive headroom

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

EUVD-2026-66573

In the Linux kernel, the following vulnerability has been resolved: macvlan: inherit neededheadroom and neededtailroom from lowerdev macvlan devices inherit hardheaderlen from lowerdev during macvlaninit, but leave neededheadroom and neededtailroom set to 0. When the underlying lowerdev requires...

CVE-2026-74744 ipvlan: inherit needed_headroom and needed_tailroom from phy_dev

In the Linux kernel, the following vulnerability has been resolved: ipvlan: inherit neededheadroom and neededtailroom from phydev ipvlan devices inherit hardheaderlen from phydev during ipvlaninit, but leave neededheadroom and neededtailroom set to 0. When the underlying phydev or stacked lower...

PT-2026-82124

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ipvlan module where devices inherit hard header len from phy dev during ipvlan init but fail to inherit needed headroom and needed tailroom, leaving them set to 0...

Linux Distros Unpatched Vulnerability : CVE-2026-74743

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - macvlan: inherit neededheadroom and neededtailroom from lowerdev macvlan devices inherit hardheaderlen from lowerdev during macvlaninit, but leave neededheadroo...

CVE-2026-74743: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: macvlan: inherit neededheadroom and neededtailroom from lowerdev macvlan devices inherit hardheaderlen from lowerdev during macvlaninit, but leave neededheadroom and neededtailroom set to 0. When the underlying lowerdev requires...

PT-2026-82123

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the macvlan module where devices inherit hard header len from the lower device during macvlan init but fail to inherit needed headroom and needed tailroom, leaving the...

SUSE CVE-2026-74668

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in TXRING send path tpacketsnd reads dev-hardheaderlen independently for skb allocation and header construction in tpacketfillskb. Concurrent netdevice reconfiguration can therefore make the...