CVE-2026-31626

HIGH

staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.1
EPSS 0.0029
EPSS Percentile 21.0%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Details

CWE
CWE-908
Status published
Products (34)
linux/Kernel 4.12.0 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.24linux
linux/Kernel 6.19.0 - 6.19.14linux
linux/Kernel 6.2.0 - 6.6.136linux
linux/Kernel 6.20.0 - 7.0.1linux
linux/Kernel 6.7.0 - 6.12.83linux
Linux/Linux < 4.12
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - b487a7754d874230299d5a9c2710ec4df8b2ed8a
... and 24 more
Published Apr 24, 2026
Tracked Since Apr 24, 2026