CVE-2017-2671: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

Affected products

• Linux Linux Kernel: up to and including 4.10.8

Published 2017-04-05. Last modified 2026-06-17.