CVE-2026-93785
NONE—CVSS v3
—CVSS v2
—
EPSS (exploit probability)
—CWE
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.
Affected routers (0)
No routers currently mapped to this CVE in our database.