CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree
Published Aug 19, 2025
·Updated
net/sched: Restrict conditions for adding duplicating netems to qdisc tree
Other sources
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
— NVD
Affected Software
4 affected componentsFixes available
Linux Linux kernel
Microsoft cbl2 kernel 5.15.186.1-1
Microsoft azl3 kernel 6.6.96.2-1
Microsoft azl3 kernel 6.6.96.2-2
Event History
Aug 19, 2025
CVE Published
via MITRE·06:06 AM
Rejected
via MITRE·06:06 AM
Data Sourced
via NVD·06:15 AM
Description
Sep 4, 2025
Data Sourced
via Microsoft·02:28 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·09:28 AM
SeverityAffected Software
Updated
via Microsoft·09:28 AM
DescriptionSeverity
Jun 17, 2026
Rejected
via MITRE·06:23 PM
Frequently Asked Questions
1
What is the severity of CVE-2025-38553?
The severity of CVE-2025-38553 is classified as medium due to its potential to cause a soft lockup in the Linux kernel.
2
How do I fix CVE-2025-38553?
To fix CVE-2025-38553, upgrade to the latest patched version of the Linux kernel provided by your Linux distribution.
3
What systems are affected by CVE-2025-38553?
CVE-2025-38553 affects the Linux kernel in systems that implement netem functionality.
4
What is netem in the context of CVE-2025-38553?
Netem is a network emulator in the Linux kernel used for testing network performance and conditions.
5
Can CVE-2025-38553 lead to data loss?
While CVE-2025-38553 primarily causes a soft lockup, it may indirectly lead to data loss if the system becomes unresponsive.