CVE-2025-40149

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2025-11-12

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc
• https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee
• https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5
• https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9
• https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c

Check your stackJSON