i40e: Fix potential invalid access when MAC list is empty

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-39853
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-19 16:15:44 UTC
Updated2026-05-12 13:17:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

Problem Types: CWE-125

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 971feafe157afac443027acdc235badc6838560b git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 3c6fb929afa313d9d11f780451d113f73922fe5d git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 1eadabcf5623f1237a539b16586b4ed8ac8dffcd git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 e2a5e74879f9b494bbd66fa93f355feacde450c7 git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 fb216d980fae6561c7c70af8ef826faf059c6515 git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 9c21fc4cebd44dd21016c61261a683af390343f8 git Not specified
CNA Linux Linux affected e3219ce6a775468368fb270fae3eb82a6787b436 a556f06338e1d5a85af0e32ecb46e365547f92b9 git Not specified
CNA Linux Linux affected 4.6 Not specified
CNA Linux Linux unaffected 4.6 semver Not specified
CNA Linux Linux unaffected 5.4.299 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.243 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.192 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.151 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.105 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.46 6.12.* semver Not specified
CNA Linux Linux unaffected 6.16.6 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.3 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family affected V3.3 custom Not specified
ADP Siemens SCALANCE XCH328 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM324 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM328 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM332 affected V3.3 custom Not specified
ADP Siemens SCALANCE XRH334 24 V DC 8xFO CC affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230 V AC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230 V AC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230V AC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24 V DC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24 V DC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24V DC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230 V AC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230 V AC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230V AC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-089022.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00007.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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