CVE-2025-40057 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

ptp: Add a upper bound on max_vclocks

syzbot reported WARNING in max_vclocks_store.

This occurs when the argument max is too large for kcalloc to handle.

Extend the guard to guard against values that are too large for
kcalloc

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00017.

Key SSVC decision points have not yet been added.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/35ce5f163889dbce88eda1df661b357a09bbed87
https://git.kernel.org/stable/c/8dd446056336faa2283d62cefc2f576536845edc
https://git.kernel.org/stable/c/e9f35294e18da82162004a2f35976e7031aaf7f9

History

Tue, 28 Oct 2025 12:00:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: ptp: Add a upper bound on max_vclocks syzbot reported WARNING in max_vclocks_store. This occurs when the argument max is too large for kcalloc to handle. Extend the guard to guard against values that are too large for kcalloc
Title		ptp: Add a upper bound on max_vclocks
References		https://git.kernel.org/stable/c/35ce5f163889dbce88eda1df661b357a09bbed87 https://git.kernel.org/stable/c/8dd446056336faa2283d62cefc2f576536845edc https://git.kernel.org/stable/c/e9f35294e18da82162004a2f35976e7031aaf7f9

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-10-28T11:48:30.947Z

Updated: 2025-10-28T11:48:30.947Z

Reserved: 2025-04-16T07:20:57.158Z

Link: CVE-2025-40057

Vulnrichment

No data.

NVD

Status : Received

Published: 2025-10-28T12:15:40.033

Modified: 2025-10-28T12:15:40.033

Link: CVE-2025-40057

Redhat

No data.

OpenCVE Enrichment

No data.

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