net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-36974
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-06-18 20:15:13 UTC
Updated2026-05-12 12:16:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 a3d43c0d56f1b94e74963a2fbadfb70126d92213 c6041e7124464ce7e896ee3f912897ce88a0c4ec git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 6db4af09987cc5d5f0136bd46148b0e0460dae5b git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 d3dde4c217f0c31ab0621912e682b57e677dd923 git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 0bf6cc96612bd396048f57d63f1ad454a846e39c git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 724050ae4b76e4fae05a923cb54101d792cf4404 git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 c37a27a35eadb59286c9092c49c241270c802ae2 git Not specified
CNA Linux Linux affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 f921a58ae20852d188f70842431ce6519c4fdc36 git Not specified
CNA Linux Linux affected 5.2 Not specified
CNA Linux Linux unaffected 5.2 semver Not specified
CNA Linux Linux unaffected 5.4.279 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.221 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.162 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.95 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.35 6.6.* semver Not specified
CNA Linux Linux unaffected 6.9.6 6.9.* semver Not specified
CNA Linux Linux unaffected 6.10 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens RUGGEDCOM RST2428P unaffected * custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * 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 SCALANCE XCM-/XRM-/XCH-/XRH-300 Family unaffected * custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d3dde4c217f0c31ab0621912e682b57e677dd923 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/c6041e7124464ce7e896ee3f912897ce88a0c4ec 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/6db4af09987cc5d5f0136bd46148b0e0460dae5b af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/c37a27a35eadb59286c9092c49c241270c802ae2 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/f921a58ae20852d188f70842431ce6519c4fdc36 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-355557.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
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