boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2025-38083MEDIUM
Linux Linux — net_sched: prio: fix a race in prio_tune()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  U  N  N  H    4.7   .0012    2.3     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 –  —
  Linux    5.0 –                                       5.4.295
TIMELINE
  Apr 16  Reserved by Linux
  Jun 20  Published (CNA: Linux)
  Jul 30  RESCORED — CVE-2025-38083 (Linux). CVSS 7.8 → 4.7 (NVD).
CWE-362 · CNA: Linux · CVSS v3.1 · 11 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
April 16, 2025ReservedReserved by Linux
June 20, 2025PublishedPublished (CNA: Linux)
July 30, 2026RESCOREDRESCORED — CVE-2025-38083 (Linux). CVSS 7.8 → 4.7 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux7b8e0b6e659983154c8d7e756cdb833d89a3d4d7
LinuxLinux5.05.4.295

Weaknesses

CWE-362

References (11)

Related

Authoritative record: CVE-2025-38083 at cve.org

Vendors: linux

Weaknesses: CWE-362

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-38083 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.