CVE-2017-15649: Linux Kernel

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346.

Affected products

• Linux Linux Kernel: up to and including 4.13.5

Published 2017-10-19. Last modified 2026-06-17.