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VULNERABILITIES

CVE-2026-93785 Details

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: validate idmap key payload length The cifs.idmap key type stores its payload length in key->datalen, which is limited to U16_MAX. Accepting a larger key payload truncates the recorded length and can make later users interpret the payload using inconsistent bounds. Reject oversized preparsed payloads before allocating or copying them. This keeps key->datalen consistent with the stored data for both inline and separately allocated idmap payloads.

Metrics

CVSS 3.x Severity and Vector Strings:

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

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/455488cd5054bcc59db40fa1cc2c004031a5b2a5 kernel.org
https://git.kernel.org/stable/c/6cfeef221ac00d63c07f6122f58e6159bde69ca0 kernel.org
https://git.kernel.org/stable/c/8b12f65d7caf16d124098cb4895a203367d35b57 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-2026-93785
NVD Published Date:
Sep 24, 2026
NVD Last Modified:
Sep 25, 2026
Source:
kernel.org