net: ena: Fix incorrect descriptor free behavior

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-35958
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-20 10:15:11 UTC
Updated2026-05-12 12:16:43 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.

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: NVD-CWE-noinfo | CWE-noinfo Not enough information

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 548c4940b9f1f527f81509468dd60b61418880b6 b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 git Not specified
CNA Linux Linux affected 548c4940b9f1f527f81509468dd60b61418880b6 fdfbf54d128ab6ab255db138488f9650485795a2 git Not specified
CNA Linux Linux affected 548c4940b9f1f527f81509468dd60b61418880b6 19ff8fed3338898b70b2aad831386c78564912e1 git Not specified
CNA Linux Linux affected 548c4940b9f1f527f81509468dd60b61418880b6 5c7f2240d9835a7823d87f7460d8eae9f4e504c7 git Not specified
CNA Linux Linux affected 548c4940b9f1f527f81509468dd60b61418880b6 c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1d git Not specified
CNA Linux Linux affected 548c4940b9f1f527f81509468dd60b61418880b6 bf02d9fe00632d22fa91d34749c7aacf397b6cde git Not specified
CNA Linux Linux affected 5.6 Not specified
CNA Linux Linux unaffected 5.6 semver Not specified
CNA Linux Linux unaffected 5.10.216 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.156 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.87 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.28 6.6.* semver Not specified
CNA Linux Linux unaffected 6.8.7 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family affected V3.1 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7 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/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cde af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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