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CVE-2025-38411

Linux Kernel double free

9.8 CRITICALEPSS 0.33%
  1. Published25 Jul 2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix double put of request If a netfs request finishes during the pause loop, it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however, if it then goes to the final wait loop, that will *also* put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector. In fact, since IN_PROGRESS is clear, we shouldn't call the collector again since it's done all the cleanup, such as calling ->ki_complete(). Fix this by making netfs_collect_in_app() just return, indicating that we're done if IN_PROGRESS is removed.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 6.15.3 < 6.15.6 · 6.16

Remediation

Fixed in
Linux Kernel≥ 6.15.6

References

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Frequently asked

Is CVE-2025-38411 being actively exploited?

CVE-2025-38411 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.33%.

How severe is CVE-2025-38411?

CVE-2025-38411 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.33% probability of exploitation.

Which products are affected by CVE-2025-38411?

Affected products include Linux Kernel.

How do I fix CVE-2025-38411?

Upgrade affected software to a fixed version, for example Linux Kernel 6.15.6 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-38411 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.