CVE-2026-31612
Published: Apr 24, 2026
Modified: Jun 1, 2026
CVSS v3.1
7.5
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate EaNameLength in smb2_get_ea() smb2_get_ea() reads ea_req->EaNameLength from the client request and passes it directly to strncmp() as the comparison length without verifying that the length of the name really is the size of the input buffer received. Fix this up by properly checking the size of the name based on the value received and the overall size of the request, to prevent a later strncmp() call to use the length as a "trusted" size of the buffer. Without this check, uninitialized heap values might be slowly leaked to the client.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 859f11e1bc81a4d32bb3ceeae54bcd296ac675d3affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 4b73376feecb3b61172fe5b4ff42bbbb8531669daffected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 551dfb15b182abad4600eaf7b37e6eb7000d5b1baffected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 3363a770b193f555f29d76ddf4ced3305c0ccf6daffected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 243b206bcb5a7137e8bddd57b2eec81e1ebd3859+2 more versions |
Linux | Linux | affected 5.15unaffected 0 - < 5.15unaffected 6.1.175 - <= 6.1.*unaffected 6.6.136 - <= 6.6.*unaffected 6.12.83 - <= 6.12.*+4 more versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now