CVE-2026-80590

CVE-2026-80590 is a Linux kernel local denial-of-service vulnerability in the inet fragment reassembly path. When a virtio_net_hdr (via tun/tap or AF_PACKET with PACKET_VNET_HDR) marks an IPv4 or IPv6 fragment as GSO, the reassembled skb retains stale GSO state. The next segmentation point (e.g.,...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2026-31771: Bluetooth: Ignore HCIERRORCANCELLEDBYHOST on adv set terminated event bsc1264145. CVE-2026-43038: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach...

CVE-2026-52937

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990239)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990239 advisory. In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validi...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tap: added missing verification for short frames The referenced commit failed to check the validity of the frame length in the tapgetuserxdp function, which could result in a corrupted skb being sent down the stack. Even before t...

[Tundeep v0.2a] Layer 2 VPN/Injection tool

Tundeep is a layer 2 VPN/injection tool that resides almost entirely in user space on the victim aside from the pcap requirement. This can be handled via a silent install however. The tool will build on Linux and Windows victims. Windows compilation is achieved using Cygwin. The attacker must be ...

USN-1531-1: Linux kernel vulnerabilities

An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface which is not available to unprivileged users until granted by a root user could exploit this flaw to crash the system or potential gain administrative privileges...