# CVE-2026-31626

> Vulnerability · severity: **HIGH** (CVSS 7.1).

## 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.

## Key facts

- **CVE ID:** CVE-2026-31626
- **Published:** 2026-04-24
- **CVSS severity:** HIGH
- **CVSS base score:** 7.1
- **CWE codes:** CWE-908

## Affected products

- `linux:linux_kernel`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31626

## Citation

> AI Analytics. CVE-2026-31626. Retrieved 2026-08-08 from https://api.ai-analytics.org/cve/CVE-2026-31626. Derived from NIST NVD. Licensed CC0.

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