Security Advisory

CVE-2025-40170

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-11-12 10:46:52

Last updated 2026-05-11 21:44:07

Assigner Linux

State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: net: use dst_dev_rcu() in sk_setup_caps() Use RCU to protect accesses to dst->dev from sk_setup_caps() and sk_dst_gso_max_size(). Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), and ip_dst_mtu_maybe_forward(). ip4_dst_hoplimit() can use dst_dev_net_rcu().

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