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 v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc	Patch
https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee	Patch
https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5	Patch
https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9	Patch
https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c	Patch
https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407	Patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-11-12 11:15

Updated : 2026-07-30 06:24

NVD link : CVE-2025-40149

Mitre link : CVE-2025-40149

CVE.ORG link : CVE-2025-40149

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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is\nbond_sk_get_lower_dev(), which uses RCU."}], "lastModified": "2026-07-30T06:24:13.833", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "312A3393-F2B5-4A95-B998-B763A195F2DB", "versionEndExcluding": "5.15.199", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E135B7E2-61FC-4DC1-8570-ABD67894FFDE", "versionEndExcluding": "6.1.161", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB7A164B-7422-4A1C-82FB-5FCAEE53C06C", "versionEndExcluding": "6.6.121", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F72B884C-B44F-40E4-9895-CE421AC663D0", "versionEndExcluding": "6.12.66", "versionStartIncluding": "6.7"}, {"criteria": 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