CVE-2026-90063

CVE-2026-90063 is a vulnerability in the Linux kernel's virtio-net driver. A user can specify a gso_size smaller than 8 (below TCP_MIN_GSO_SIZE) in a packet crafted via an AF_PACKET PACKET_VNET_HDR socket. Because GSO_MAX_SIZE equals 8 × 65535, dividing the SKB length by a gso_size

CVE-2026-90063 virtio-net: Ensure that TCP packets don't overflow gso_segs

In the Linux kernel, the following vulnerability has been resolved: virtio-net: Ensure that TCP packets don't overflow gsosegs The user can specify any gsosize in a packet crafted with an AFPACKET PACKETVNETHDR socket, even smaller than TCPMINGSOSIZE = 8. At the same time, GSOMAXSIZE = 8 GSOMAXSE...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098957)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098957 advisory. In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is...

AZL-85448 CVE-2026-31700 affecting package kernel for versions less than 6.6.137.1-2

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...