CVE-2026-31626

high

Description

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.

References

https://git.kernel.org/stable/c/ef74ce5f0bc0e53ce702d8a794f3957884a26efc

https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732

https://git.kernel.org/stable/c/c65ee4d3be5df395e48afbcd0946dd5fce4338a9

https://git.kernel.org/stable/c/c2026c6b603ebec52f55015496703fe79077accf

https://git.kernel.org/stable/c/b487a7754d874230299d5a9c2710ec4df8b2ed8a

https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57

Details

Source: Mitre, NVD

Published: 2026-04-24

Updated: 2026-04-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00018