CVE-2026-80601 batman-adv: gw: acquire ethernet header only after skb realloc

In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskbmaypull called by batadvgetvid could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...

CVE-2026-80601

CVE-2026-80601 is a use-after-free vulnerability in the batman-adv (Broadcast and Forwarding in Multi-Hop Wireless Mesh Networks) module of the Linux kernel , specifically in the gateway path. The function batadv_get_vid() calls pskb_may_pull(), which can reallocate the buffer behind the skb. Var...

CVE-2026-80601

In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskbmaypull called by batadvgetvid could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...

PT-2026-82912

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the sk buff-data me...

Linux Distros Unpatched Vulnerability : CVE-2026-80681

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vxlan: re-fetch eth header after routeshortcircuit Before routeshortcircuit, the eth header pointer is cached from ethhdrskb. Inside routeshortcircuit,...

CVE-2026-74743

A flaw was found in the Linux kernel's macvlan component. The macvlan component incorrectly initializes network packet buffer skb headroom and tailroom values, failing to inherit them from the underlying network device. This can occur when the underlying device requires additional space for heade...

CVE-2026-31429-POC

CVE-2026-31429 — Linux-Kernel: Cross-Cache-Free von KFENCE-allokiertem SKB-Head über bpfprogtestrunskb Schweregrad: Mittel CWE-763: Freigabe eines ungültigen Zeigers oder einer ungültigen Referenz Veröffentlicht: 2026-04-20 Betroffenes Subsystem: net/core/skbuff.c — skbkfreehead Forscher: Antoniu...

CVE-2026-74743

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

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...

AZL-97830 CVE-2026-74747 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ipvs: revalidate ihl to prevent out-of-bounds access While the outer IP header is already pulled into the skb head, we must be careful and revalidate the embedded headers after reading them from the skb frags to prevent...

CVE-2026-74747 ipvs: revalidate ihl to prevent out-of-bounds access

In the Linux kernel, the following vulnerability has been resolved: ipvs: revalidate ihl to prevent out-of-bounds access While the outer IP header is already pulled into the skb head, we must be careful and revalidate the embedded headers after reading them from the skb frags to prevent...

CVE-2026-74747

CVE-2026-74747 affects the Linux kernel in the ipvs (IP Virtual Server) subsystem, specifically in ip_vs_nat_icmp() . After reading embedded IP headers from skb frags, the ihl field is not revalidated; a local process can modify it so that after skb_ensure_writable() a larger value is visible, ca...

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...

CVE-2026-74743 macvlan: inherit needed_headroom and needed_tailroom from lowerdev

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-2026-82124

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...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098964)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098964 advisory. In the Linux kernel, the following vulnerability has been resolved: ip6gre: make ip6greheader robust Over the years, syzbot found many ways to crash the kernel in...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098740)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098740 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a point...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098801)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098801 advisory. In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Fix memleak issue when GSO enabled Always map the skb to the LS descriptor...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098941)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098941 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv4: ipgre: make ipgreheader robust Analog to commit db5b4e39c4e6 ip6gre: make ip6greheader robu...

VulnCheck KEV: CVE-2026-46300

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skbtrycoalesce can attach paged frags from @from to @to. If @from has SKBFLSHAREDFRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backe...