CVE-2026-98830

/// Technical description

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

wifi: wfx: validate MIB read length before copying to caller

wfx_hif_read_mib() copies reply->length bytes from the firmware

response into the caller-provided buffer without checking that

reply->length does not exceed val_len. A firmware response with

a length field larger than expected overruns the caller buffer and

reads past the end of the reply allocation.

Replace the dead -ENOMEM check with an active validation that

reply->length fits within val_len before the memcpy.

/// 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