Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: llc: A test for maclen should be performed before reading the MAC header. The LLC layer reads the MAC header using ethhdr, without verifying that the skb contains an Ethernet header. Syzbot was able to access the llcrcv functi...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: batman-adv: retrieving ethhdr after a potential skb realloc on RX. The pskbmaypull function in the batadv interface’s rx function could reallocate the buffer behind the skb. Variables that pointed to the old buffer need to be...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Team: Fix null-ptr-deref when the team device type is changed. The null-ptr-deref bug occurs as follows with a reproducer 1. Bug: Kernel NULL pointer dereferencing. Address: 0000000000000228… … RIP:...

CVE-2026-98375

A flaw was found in the Linux kernel's Xen network frontend driver. This vulnerability allows a malicious host backend to cause a Denial of Service DoS by transmitting incoming network packets with an incomplete Ethernet header. Because the driver fails to verify that incoming packet buffers meet...

UBUNTU-CVE-2026-98375

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: drop RX packets with a short Ethernet header handleincomingqueue pulls pullto bytes into the head before calling ethtypetrans. pullto is the length of the first RX slot, capped at RXCOPYTHRESHOLD, and that length...

CVE-2026-98375 xen/netfront: drop RX packets with a short Ethernet header

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: drop RX packets with a short Ethernet header handleincomingqueue pulls pullto bytes into the head before calling ethtypetrans. pullto is the length of the first RX slot, capped at RXCOPYTHRESHOLD, and that length...

CVE-2026-98375 xen/netfront: drop RX packets with a short Ethernet header

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: drop RX packets with a short Ethernet header handleincomingqueue pulls pullto bytes into the head before calling ethtypetrans. pullto is the length of the first RX slot, capped at RXCOPYTHRESHOLD, and that length...

PT-2026-108761

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the xen/netfront component where the handle incoming queue function fails to verify if the length of the first RX slot, defined by the pull to variable, is at least as...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate pppoe header Ensure that there is sufficient space to access the protocol field of the PPPoE header. Validate this once before the flowtable lookup, and then use a helper function to access the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: geneve: Do not assume that the MAC header is set in genevexmitskb. We should not assume that the MAC header is present in the output path. Instead, use skbethhdr instead of ethhdr to fix the issue. sysbot reported the followin...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf, testrun: Fixed a use-after-free issue in ethskbpkttype. KMSAN reported a use-after-free issue in ethskbpkttype1. The cause of the issue was that ethskbpkttype accessed data from skb that did not contain an Ethernet header...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: llc: Makes llcuisendmsg more robust against changes related to bonding. syzbot was able to exploit llcuisendmsg, allocating a skb without sufficient headroom, and then attempting to append 14 bytes of Ethernet header information...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net: bridge: xmit: Ensure that the ethheaderlen field is set to a valid value. The syzbot triggered an uninitvalue1 error in the bridgedevice’s xmit path by sending a packet shorter than ETHHLEN bytes. To fix this issue, check...

SUSE CVE-2026-72235

In the Linux kernel, the following vulnerability has been resolved: batman-adv: retrieve ethhdr after potential skb realloc on RX pskbmaypull in batadvinterfacerx could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...

CVE-2026-80681

A flaw was found in the Linux kernel's vxlan component. A use-after-free vulnerability exists due to improper handling of the Ethernet header pointer after routeshortcircuit is called. When pskbmaypull reallocates the skb-head, the previously cached Ethernet header pointer becomes stale, leading ...

Linux Distros Unpatched Vulnerability : CVE-2026-80599

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself i...

SUSE CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

SUSE CVE-2026-80681

In the Linux kernel, the following vulnerability has been resolved: vxlan: re-fetch eth header after routeshortcircuit Before routeshortcircuit, the eth header pointer is cached from ethhdrskb. Inside routeshortcircuit, pskbmaypull can be called, which may reallocate skb-head. In this case,...

CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

UBUNTU-CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...