Numeric Truncation Error in Linux kernel - CVE-2026-93785
Published: September 25, 2026
Vulnerability identifier: #VU152101
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93785
CWE-ID: CWE-197
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause inconsistent payload length interpretation.
The vulnerability exists due to improper validation of payload length in the cifs.idmap key type when processing oversized preparsed payloads. A local user can provide an oversized preparsed payload to cause inconsistent payload length interpretation.
Affected software
Linux kernel
How to mitigate CVE-2026-93785
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3