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Not yet scoredPublished Oct 28, 2025

CVE-2025-40057ptp: Add a upper bound on max_vclocks

Updated under an hour ago ()

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No exploitation reported and no EPSS estimate yet.

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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

CVSS
Not yet scored
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Deferred
Record last updated
Oct 21, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 73f37068d540eba5f93ba3a0019bf479d35ebd76 before da513f2ad1b1b1cf1880ccc2603ce1f1f818eb2e; 73f37068d540eba5f93ba3a0019bf479d35ebd76 builds before 8dd446056336faa2283d62cefc2f576536845edc; 73f37068d540eba5f93ba3a0019bf479d35ebd76 builds before 35ce5f163889dbce88eda1df661b357a09bbed87; from 73f37068d540eba5f93ba3a0019bf479d35ebd76 before e9f35294e18da82162004a2f35976e7031aaf7f9
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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