CVE-2025-40149

Published: November 14, 2025Last modified: November 14, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.

Status

References

• https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5
• https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407