CVE-2025-38083

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-38083
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38083.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38083
Downstream
Related
Published
2025-06-20T11:21:51.554Z
Modified
2026-05-15T11:53:13.495033292Z
Summary
net_sched: prio: fix a race in prio_tune()
Details

In the Linux kernel, the following vulnerability has been resolved:

netsched: prio: fix a race in priotune()

Gerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer fires at the wrong time.

The race is as follows:

CPU 0 CPU 1 | | [5]: lock root | [6]: rehash | [7]: qdisctreereduce_backlog() | This can be abused to underflow a parent's qlen.

Calling qdiscpurgequeue() instead of qdisctreeflush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38083.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0
Fixed
5.4.295
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.239
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.186
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.142
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.94
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.34
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.15.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38083.json"