Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-40149

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
12/11/2025
Last modified:
26/02/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().<br /> <br /> get_netdev_for_sock() is called during setsockopt(),<br /> so not under RCU.<br /> <br /> Using sk_dst_get(sk)-&gt;dev could trigger UAF.<br /> <br /> Let&amp;#39;s use __sk_dst_get() and dst_dev_rcu().<br /> <br /> Note that the only -&gt;ndo_sk_get_lower_dev() user is<br /> bond_sk_get_lower_dev(), which uses RCU.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.18 (including) 5.15.199 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.161 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.121 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.66 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.17.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools