CVE-2026-98185

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

wifi: mwifiex: validate scan response extents

mwifiex_ret_802_11_scan() subtracts the fixed response fields and the

firmware-provided BSS length from resp->size without first proving that

either extent fits. A short response or oversized BSS length can

therefore underflow tlv_buf_size and make the TLV parser walk beyond the

command response.

Compute the fixed extent from the selected normal or background scan

response. Validate that the fixed fields and BSS data fit before deriving

the TLV extent and entering the parser.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References