CVE-2025-39897

In the Linux kernel, the following vulnerability has been resolved: net: xilinx: axienet: Add error handling for RX metadata pointer retrieval Add proper error checking for dmaengine_desc_get_metadata_ptr() which can return an error pointer and lead to potential crashes or undefined behaviour if the pointer retrieval fails. Properly handle the error by unmapping DMA buffer, freeing the skb and returning early to prevent further processing with invalid data.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/8bbceba7dc5090c00105e006ce28d1292cfda8dd	Patch
https://git.kernel.org/stable/c/92e2fc92bc4eb2bc0e84404316fbc02ddd0a3196	Patch
https://git.kernel.org/stable/c/d0ecda6fdd840b406df6617b003b036f65dd8926	Patch

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:6.17:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc4::::::

History

19 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: net: xilinx: axienet: Añadir manejo de errores para la recuperación del puntero de metadatos RX Añadir una comprobación de errores adecuada para dmaengine_desc_get_metadata_ptr() que puede devolver un puntero de error y provocar posibles fallos o comportamiento indefinido si la recuperación del puntero falla. Manejar el error adecuadamente desmapeando el búfer DMA, liberando el skb y retornando anticipadamente para evitar un procesamiento posterior con datos no válidos.

Information

Published : 2025-10-01 08:15

Updated : 2026-10-19 21:10

NVD link : CVE-2025-39897

Mitre link : CVE-2025-39897

CVE.ORG link : CVE-2025-39897

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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falla.\n\nManejar el error adecuadamente desmapeando el b\u00fafer DMA, liberando el skb y retornando anticipadamente para evitar un procesamiento posterior con datos no v\u00e1lidos."}], "lastModified": "2026-10-19T21:10:00.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A3D8605B-E98E-4EB0-B45C-7934FD3495FC", "versionEndExcluding": "6.12.46", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "548F104C-0F08-438B-9C97-64C903F0C678", "versionEndExcluding": "6.16.6", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9"}, 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