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...

PT-2026-36330

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Time-of-Check to Time-of-Use TOCTOU race condition exists in the tpacket snd function when PACKET VNET HDR is enabled. The vnet hdr points to a memory-mapped TX ring buffer shared with...