What is CVE-2025-38083?

CVE-2025-38083 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 5.0 onward and patched in 5.4.295, 5.10.239, 5.15.186 and others. CVE-2025-38083 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38083?

CVE-2025-38083 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-38083?

Yes, CVE-2025-38083 has been patched. Fixed versions include 5.4.295, 5.10.239, 5.15.186 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38083 actively exploited?

CVE-2025-38083 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2025-38083

Medium

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.

Package Linux Kernel

Published 2025-06-20

Last modified 2026-05-12

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-362

CVE-2025-38083 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.0 and later are affected. Fixed in 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16 and their respective stable series.

Affected from

≥ 5.0

Fixed in

✓ 5.4.295 5.4.x ✓ 5.10.239 5.10.x ✓ 5.15.186 5.15.x ✓ 6.1.142 6.1.x ✓ 6.6.94 6.6.x ✓ 6.12.34 6.12.x ✓ 6.15.3 6.15.x ✓ 6.16

References

11 total

Kernel Git
https://git.kernel.org/stable/c/20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f

Patch
Kernel Git
https://git.kernel.org/stable/c/3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4

Patch
Kernel Git
https://git.kernel.org/stable/c/4483d8b9127591c60c4eb789d6cab953bc4522a9

Patch
Kernel Git
https://git.kernel.org/stable/c/46c15c9d0f65c9ba857d63f53264f4b17e8a715f

Patch
Kernel Git
https://git.kernel.org/stable/c/53d11560e957d53ee87a0653d258038ce12361b7

Patch

Showing 5 of 11 references View all on NVD

Details

CVE ID CVE-2025-38083

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2025-06-20

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38083?

CVE-2025-38083 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.0 onward and has been patched in 5.4.295, 5.10.239, 5.15.186 and others. CVE-2025-38083 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38083?

CVE-2025-38083 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-38083?

Yes. CVE-2025-38083 has been patched. Fixed versions include 5.4.295, 5.10.239, 5.15.186 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38083 actively exploited?

No. CVE-2025-38083 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.