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High 7.5Published Jan 13, 2026

CVE-2025-68806ksmbd: fix buffer validation by including null terminator size in EA length

Updated under an hour ago ()

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

CVSS
7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
Aug 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from d070c4dd2a5bed4e9832eec5b6c029c7d14892ea before cae52c592a07e1d3fa3338a5f064a374a5f26750; from 0ba5439d9afa2722e7728df56f272c89987540a4 before a28a375a5439eb474e9f284509a407efb479c925; from 0ba5439d9afa2722e7728df56f272c89987540a4 before d26af6d14da43ab92d07bc60437c62901dc522e6; from 0ba5439d9afa2722e7728df56f272c89987540a4 before 6dc8cf6e7998ef7aeb9383a4c2904ea5d22fa2e4; from 0ba5439d9afa2722e7728df56f272c89987540a4 before 95d7a890e4b03e198836d49d699408fd1867cb55; bb5bf157b5be1643cccc7cbbe57fcdef9ae52c2c; 1a13ecb96230e8b7b91967e292836f7b01ec8111; 404e7c01e16288b5e0171d1d8fd3328e806d0794; and 4 more ranges
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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