Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-89673 Details

Description

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo nfsd4_ff_encode_getdeviceinfo() computes the da_addr_body reservation as 16 + netid_len + addr_len, but the subsequent xdr_encode_opaque() calls emit 8 + round_up(netid_len, 4) + round_up(addr_len, 4) bytes. The mismatch means the declared da_addr_body length exceeds the actual encoded data by 2-8 bytes on every flexfile GETDEVICEINFO reply, leaking stale reply-page content to the client and mis-aligning the subsequent version list decode. Use xdr_align_size() for each string length to match what xdr_encode_opaque() actually writes.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/41ebca28e17f84293650598f86bd69532ec1a8e0 kernel.org
https://git.kernel.org/stable/c/62e5949f0dd5ec837af144860ff908369df4c7c9 kernel.org
https://git.kernel.org/stable/c/74015b7be806ad9e21d46f7bd2831df280c6c783 kernel.org
https://git.kernel.org/stable/c/88bce7e326c368d7df15126ccac537e54bebd467 kernel.org
https://git.kernel.org/stable/c/8b989aaec85e1293a871d602590c951fe44b8647 kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89673
NVD Published Date:
Sep 11, 2026
NVD Last Modified:
Sep 14, 2026
Source:
kernel.org
CVE-2026-89673 Details - Not Deferred