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...

The vulnerability of the tpacket_snd() function in the net/packet/af_packet.c module of the Linux kernel allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the tpacketsnd function in the net/packet/afpacket.c module of the Linux kernel is related to synchronization errors when using shared resources „Race Conditions“. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and...

SUSE CVE-2026-31700

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...

CVE-2026-31700

Summary (CVE-2026-31700): In the Linux kernel, a TOCTOU race in tpacket_snd() when PACKET_VNET_HDR is enabled allows a user-space race on vnet_hdr fields between validation and use, bypassing safety checks. The vulnerability affects the mmap’d TX ring buffer where vnet_hdr points into user-contro...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a TOCTOU race condition in the tpacketsnd function’s mmap d vnethdr operation. This vulnerability...