CVE & CISA-KEV Catalog

CVE-2025-38306

MEDIUM
4.7
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: fs/fhandle.c: fix a race in call of has_locked_children() may_decode_fh() is calling has_locked_children() while holding no locks. That's an oopsable race... The rest of the callers are safe since they are holding namespace_sem and are guaranteed a positive refcount on the mount in question. Rename the current has_locked_children() to __has_locked_children(), make it static and switch the fs/namespace.c users to it. Make has_locked_children() a wrapper for __has_locked_children(), calling the latter under read_seqlock_excl(&mount_lock).

How to fix

Remediation Available
linuxDebian
Fixed in:6.12.48-1CVE-2025-38306
Fixed in:6.16.3-1CVE-2025-38306
linux-aws-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-gcp-6.14Ubuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-hwe-6.14Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-6.14.0-1012-oemUbuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-6.14.0-1012-realtimeUbuntu
Fixed in:6.14.0-1012.12~24.04.1USN-7769-2
linux-image-6.14.0-1013-awsUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-6.14.0-1013-aws-64kUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-6.14.0-1013-oracleUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-6.14.0-1013-oracle-64kUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-6.14.0-1016-gcpUbuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-6.14.0-1016-gcp-64kUbuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-6.14.0-32-genericUbuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-6.14.0-32-generic-64kUbuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-awsUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-aws-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-aws-64kUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-aws-64k-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7769-3
linux-image-gcpUbuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-gcp-6.14Ubuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-gcp-64kUbuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-gcp-64k-6.14Ubuntu
Fixed in:6.14.0-1016.17~24.04.1USN-7769-1
linux-image-generic-6.14Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-generic-64k-6.14Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-generic-64k-hwe-24.04Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-generic-hwe-24.04Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-oem-24.04Ubuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-oem-24.04aUbuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-oem-24.04bUbuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-oem-24.04cUbuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-oem-6.14Ubuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-image-oracleUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-oracle-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-oracle-64kUbuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-oracle-64k-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-image-realtime-6.14Ubuntu
Fixed in:6.14.0-1012.12~24.04.1USN-7769-2
linux-image-realtime-hwe-24.04Ubuntu
Fixed in:6.14.0-1012.12~24.04.1USN-7769-2
linux-image-virtual-6.14Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-image-virtual-hwe-24.04Ubuntu
Fixed in:6.14.0-32.32~24.04.1USN-7769-3
linux-oem-6.14Ubuntu
Fixed in:6.14.0-1012.12USN-7771-1
linux-oracle-6.14Ubuntu
Fixed in:6.14.0-1013.13~24.04.1USN-7789-1
linux-realtime-6.14Ubuntu
Fixed in:6.14.0-1012.12~24.04.1USN-7769-2

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.11%probability of exploitation in 30 days
1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-6387High8.1100%-Fix
CVE-2023-36884High7.599%KEV + RansomFix
CVE-2018-15473Medium5.399%-Fix
CVE-2024-27983High8.287%-Fix
CVE-2014-0226Medium6.886%-Fix
CVE-2016-5195High7.084%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-18.