Executive Summary

Informations
Name CVE-2025-38083 First vendor Publication 2025-06-20
Vendor Cve Last vendor Modification 2025-06-27

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

net_sched: prio: fix a race in prio_tune()

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 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root
|
| [5]: lock root
| [6]: rehash
| [7]: qdisc_tree_reduce_backlog()
| [4]: qdisc_put()

This can be abused to underflow a parent's qlen.

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-38083

Sources (Detail)

https://git.kernel.org/stable/c/20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f
https://git.kernel.org/stable/c/3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4
https://git.kernel.org/stable/c/4483d8b9127591c60c4eb789d6cab953bc4522a9
https://git.kernel.org/stable/c/46c15c9d0f65c9ba857d63f53264f4b17e8a715f
https://git.kernel.org/stable/c/53d11560e957d53ee87a0653d258038ce12361b7
https://git.kernel.org/stable/c/93f9eeb678d4c9c1abf720b3615fa8299a490845
https://git.kernel.org/stable/c/d35acc1be3480505b5931f17e4ea9b7617fea4d3
https://git.kernel.org/stable/c/e3f6745006dc9423d2b065b90f191cfa11b1b584
Source Url

Alert History

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0
1
Date Informations
2025-06-27 17:20:35
  • Multiple Updates
2025-06-20 17:20:32
  • First insertion