Vulnerability in Linux

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund18 Oct 2026WID-SEC-2026-4019

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98866CVE-2026-98624CVE-2026-98745+326 more CVEs

[ References ]References

• git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333
• git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4
• git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408
• git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc
• git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db