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CVE-2024-36974

net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP

Published: Jun 18, 2024Updated: May 12, 2026 Sources: CVE List NVD BDU csafNVD-CWE-noinfo
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.3%
Top 80.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In 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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

linux kernellinux
On-premOS
Operating Systems
LinuxLinux
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
EMIAS OSООО «Инновационные Технологии в Бизнесе»
SaaS
Cloud & SaaS / saas-application
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
linuxoss-projectOperating Systemsaka the linux kernel
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «инновационные технологии в бизнесе»commercialRUCloud & SaaSaka emias os
ооо «ред софт»commercialRUOperating Systemsaka red soft
and 5 more affected products View all →

Exploitability

Official Patch Available

References

https://git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c
git.kernel.org
https://git.kernel.org/stable/c/6db4af09987cc5d5f0136bd46148b0e0460dae5b
git.kernel.org
https://git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404
git.kernel.org
and 630 more references View all →

Timeline

Published
Jun 18, 2024
Last Updated
May 12, 2026

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