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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38477 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free. This patch addresses the issue by: 1. Moved qfq_destroy_class into the critical section. 2. Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-082556.html siemens-SADP
https://git.kernel.org/stable/c/466e10194ab81caa2ee6a332d33ba16bcceeeba6 kernel.org Patch 
https://git.kernel.org/stable/c/5e28d5a3f774f118896aec17a3a20a9c5c9dfc64 kernel.org Patch 
https://git.kernel.org/stable/c/a6d735100f602c830c16d69fb6d780eebd8c9ae1 kernel.org Patch 
https://git.kernel.org/stable/c/aa7a22c4d678bf649fd3a1d27debec583563414d kernel.org Patch 
https://git.kernel.org/stable/c/c000a3a330d97f6c073ace5aa5faf94b9adb4b79 kernel.org Patch 
https://git.kernel.org/stable/c/c6df794000147a3a02f79984aada4ce83f8d0a1e kernel.org Patch 
https://git.kernel.org/stable/c/d841aa5518508ab195b6781ad0d73ee378d713dd kernel.org Patch 
https://git.kernel.org/stable/c/fbe48f06e64134dfeafa89ad23387f66ebca3527 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html CVE Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html CVE Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38477
NVD Published Date:
07/28/2025
NVD Last Modified:
06/17/2026
Source:
kernel.org