CVE-2025-71239

In the Linux kernel, the following vulnerability has been resolved: audit: add fchmodat2() to change attributes class fchmodat2(), introduced in version 6.6 is currently not in the change attribute class of audit. Calling fchmodat2() to change a file attribute in the same fashion than chmod() or fchmodat() will bypass audit rules such as: -w /tmp/test -p rwa -k test_rwa The current patch adds fchmodat2() to the change attributes class.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3e762a03713e8c25ca0108c075d662c897fc0623	Patch
https://git.kernel.org/stable/c/4f493a6079b588cf1f04ce5ed6cdad45ab0d53dc	Patch
https://git.kernel.org/stable/c/4fed776ca86378da7dd743a7b648e20b025ba8ef	Patch
https://git.kernel.org/stable/c/91e27bc79c3bca93c06bf5a471d47df9a35b3741	Patch
https://git.kernel.org/stable/c/c4334c0d0e7d6f02ed93756fd4ba807e3d00c05f	Patch
https://www.bencteux.fr/posts/missing_syscalls_audit/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-03-17 10:15

Updated : 2026-06-17 10:03

NVD link : CVE-2025-71239

Mitre link : CVE-2025-71239

CVE.ORG link : CVE-2025-71239

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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Calling fchmodat2() to change a file\nattribute in the same fashion than chmod() or fchmodat() will bypass\naudit rules such as:\n\n-w /tmp/test -p rwa -k test_rwa\n\nThe current patch adds fchmodat2() to the change attributes class."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\naudit: a\u00f1adir fchmodat2() a la clase de cambio de atributos\n\nfchmodat2(), introducido en la versi\u00f3n 6.6, actualmente no est\u00e1 en la clase de cambio de atributos de audit. Llamar a fchmodat2() para cambiar un atributo de archivo de la misma manera que chmod() o fchmodat() eludir\u00e1 las reglas de audit como:\n\n-w /tmp/test -p rwa -k test_rwa\n\nEl parche actual a\u00f1ade fchmodat2() a la clase de cambio de atributos."}], "lastModified": "2026-06-17T10:03:56.177", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C0FD95A9-209E-44A8-8F1D-1EB130F75861", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}