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 0.0003
EPSS Percentile 8.2%
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 (19)
Linux/Linux < 4.12
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - b487a7754d874230299d5a9c2710ec4df8b2ed8a
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - c2026c6b603ebec52f55015496703fe79077accf
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d5b8f5f8d6fc09a8af5ed139c688660f578ed732
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - ef74ce5f0bc0e53ce702d8a794f3957884a26efc
Linux/Linux 4.12
Linux/Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b - 8c964b82a4e97ec7f25e17b803ee196009b38a57
Linux/Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b - b487a7754d874230299d5a9c2710ec4df8b2ed8a
Linux/Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b - c2026c6b603ebec52f55015496703fe79077accf
Linux/Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b - c65ee4d3be5df395e48afbcd0946dd5fce4338a9
... and 9 more
Published Apr 24, 2026
Tracked Since Apr 24, 2026