CVE-2026-31626 HIGH

CVE-2026-31626: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()

Vendor Linux
Product Linux
Published April 24, 2026
Last update June 14, 2026

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify() Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using uninitialized data. Smatch warns that only 6 bytes are copied to this 8-byte (u64) variable, leaving the last two bytes uninitialized: drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify() warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes) Initializing the variable at the start of the function fixes this warning and ensures predictable behavior.

Key dates

02Disclosure timeline

April 24, 2026 CVE published
June 14, 2026 Record updated