What is CVE-2025-38393?

CVE-2025-38393 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 5.10.124 onward and patched in 5.10.240, 5.15.187, 6.1.144 and others. CVE-2025-38393 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38393?

CVE-2025-38393 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-2025-38393?

Yes, CVE-2025-38393 has been patched. Fixed versions include 5.10.240, 5.15.187, 6.1.144 and others. If you are running Linux kernel 5.10.124 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38393 actively exploited?

CVE-2025-38393 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-2025-38393

Medium

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count was zero. It seems most likely that this is another race between the waiter and waker similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task"). Fix it up by applying the advised barrier.

Package Linux Kernel

Published 2025-07-25

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-2025-38393 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 5.10.124, 5.15.49, 5.18.6, 5.19 and later are affected. Fixed in 5.10.240, 5.15.187, 6.1.144, 6.6.97, 6.12.37, 6.15.6, 6.16 and their respective stable series.

Affected from

≥ 5.10.124 ≥ 5.15.49 ≥ 5.18.6 ≥ 5.19

Fixed in

✓ 5.10.240 5.10.x ✓ 5.15.187 5.15.x ✓ 6.1.144 6.1.x ✓ 6.6.97 6.6.x ✓ 6.12.37 6.12.x ✓ 6.15.6 6.15.x ✓ 6.16

References

10 total

Kernel Git
https://git.kernel.org/stable/c/08287df60bac5b008b6bcdb03053988335d3d282

Patch
Kernel Git
https://git.kernel.org/stable/c/1f4da20080718f258e189a2c5f515385fa393da6

Patch
Kernel Git
https://git.kernel.org/stable/c/864a54c1243ed3ca60baa4bc492dede1361f4c83

Patch
Kernel Git
https://git.kernel.org/stable/c/8846fd02c98da8b79e6343a20e6071be6f372180

Patch
Kernel Git
https://git.kernel.org/stable/c/8ca65fa71024a1767a59ffbc6a6e2278af84735e

Patch

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2025-38393

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2025-07-25

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38393?

CVE-2025-38393 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 5.10.124 onward and has been patched in 5.10.240, 5.15.187, 6.1.144 and others. CVE-2025-38393 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38393?

CVE-2025-38393 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-2025-38393?

Yes. CVE-2025-38393 has been patched. Fixed versions include 5.10.240, 5.15.187, 6.1.144 and others. If you are running Linux kernel 5.10.124 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38393 actively exploited?

No. CVE-2025-38393 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.