CVE-2026-64440

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> staging: rtl8723bs: fix OOB write in HT_caps_handler()<br /> <br /> HT_caps_handler() iterates pIE-&gt;length bytes and writes into<br /> HT_caps.u.HT_cap[], which is a fixed 26-byte array (sizeof struct<br /> HT_caps_element). Because pIE-&gt;length is a raw u8 from an over-the-air<br /> 802.11 AssocResponse frame and is never validated, a malicious AP can<br /> set it up to 255, causing up to 229 bytes of out-of-bounds writes into<br /> adjacent fields of struct mlme_ext_info.<br /> <br /> Truncate the iteration count to the size of HT_caps.u.HT_cap using<br /> umin() so that data from a longer-than-expected IE is silently ignored<br /> rather than written out of bounds, preserving interoperability with APs<br /> that pad the element. An early return on oversized IEs was considered<br /> but rejected: it would bypass the pmlmeinfo-&gt;HT_caps_enable = 1<br /> assignment that precedes the loop, silently disabling HT mode for APs<br /> that append extra bytes to the HT Capabilities IE.