i40e: fix vf may be used uninitialized in this function warning

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-36020
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-30 15:15:49 UTC
Updated2026-05-12 12:16:47 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: i40e: fix vf may be used uninitialized in this function warning To fix the regression introduced by commit 52424f974bc5, which causes servers hang in very hard to reproduce conditions with resets races. Using two sources for the information is the root cause. In this function before the fix bumping v didn't mean bumping vf pointer. But the code used this variables interchangeably, so stale vf could point to different/not intended vf. Remove redundant "v" variable and iterate via single VF pointer across whole function instead to guarantee VF pointer validity.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-908

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 76ed715836c6994bac29d9638e9314e6e3b08651 cc9cd02dd9e8b7764ea9effb24f4f1dd73d1b23d git Not specified
CNA Linux Linux affected e88c2a1e28c5475065563d66c07ca879a9afbd07 9dcf0fcb80f6aeb01469e3c957f8d4c97365450a git Not specified
CNA Linux Linux affected 9abae363af5ced6adbf04c14366289540281fb26 b8e82128b44fa40bf99a50b919488ef361e1683c git Not specified
CNA Linux Linux affected c39de3ae5075ea5f78e097cb5720d4e52d5caed9 951d2748a2a8242853abc3d0c153ce4bf8faad31 git Not specified
CNA Linux Linux affected 52424f974bc53c26ba3f00300a00e9de9afcd972 3e89846283f3cf7c7a8e28b342576fd7c561d2ba git Not specified
CNA Linux Linux affected 52424f974bc53c26ba3f00300a00e9de9afcd972 0dcf573f997732702917af1563aa2493dc772fc0 git Not specified
CNA Linux Linux affected 52424f974bc53c26ba3f00300a00e9de9afcd972 06df7618f591b2dc43c59967e294d7b9fc8675b6 git Not specified
CNA Linux Linux affected 52424f974bc53c26ba3f00300a00e9de9afcd972 f37c4eac99c258111d414d31b740437e1925b8e8 git Not specified
CNA Linux Linux affected 02f949747e6fb767b29f7931d4bbf40911684e7a git Not specified
CNA Linux Linux affected 6.1 Not specified
CNA Linux Linux unaffected 6.1 semver Not specified
CNA Linux Linux unaffected 4.19.312 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.274 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.215 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.154 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.85 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.26 6.6.* semver Not specified
CNA Linux Linux unaffected 6.8.5 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cc9cd02dd9e8b7764ea9effb24f4f1dd73d1b23d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
git.kernel.org/stable/c/951d2748a2a8242853abc3d0c153ce4bf8faad31 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/06df7618f591b2dc43c59967e294d7b9fc8675b6 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/9dcf0fcb80f6aeb01469e3c957f8d4c97365450a af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/3e89846283f3cf7c7a8e28b342576fd7c561d2ba af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/f37c4eac99c258111d414d31b740437e1925b8e8 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/0dcf573f997732702917af1563aa2493dc772fc0 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/b8e82128b44fa40bf99a50b919488ef361e1683c af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00020.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
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