CVE-2025-40149
tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().
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.
INFO
Published Date :
Nov. 12, 2025, 11:15 a.m.
Last Modified :
Feb. 26, 2026, 3:51 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Apply the latest Linux kernel security patches.
- Update the affected Linux kernel components.
- Restart affected services or the system.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-40149.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-40149 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-40149
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-40149 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-40149 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.121 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.66 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.161 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18 up to (excluding) 5.15.199 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.17.3 Added Reference Type kernel.org: https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 06, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jan. 17, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc Added Reference https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9 Added Reference https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 12, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5 Added Reference https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407