CVE-2011-2723: Linux Kernel

Medium severity, CVSS 5.7. EPSS: 1.1% chance of exploitation in the next 30 days.

The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before 2.6.39.4, when Generic Receive Offload (GRO) is enabled, resets certain fields in incorrect situations, which allows remote attackers to cause a denial of service (system crash) via crafted network traffic.

Affected products

• Linux Linux Kernel: before 2.6.39.4 (fixed in 2.6.39.4)

Published 2011-09-06. Last modified 2026-06-16.