PT-2026-64663 · Linux · Linux

CVE-2026-64442

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Publicado

2026-07-25

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Atualizado

2026-07-25

Nenhuma

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In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix OOB reads in IE loops in issue assocreq() and join cmd hdl()
Two IE parsing loops are missing the header bounds checks before they dereference pIE->length:
  • issue assocreq() walks pmlmeinfo->network.ies to build the association request. If the stored IE data ends with only an element id byte and no length byte, pIE->length is read one byte past the end of the buffer.
  • join cmd hdl() walks pnetwork->ies during station join and has the same problem under the same conditions.
Both buffers are filled from AP beacon and probe-response frames, so a malicious AP that sends a truncated final IE can trigger the issue.
Apply the two-guard pattern established in update beacon info():
  1. Break if fewer than sizeof(*pIE) bytes remain.
  2. Break if the IE's declared data extends past the buffer end.
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Identificadores relacionados

CVE-2026-64442

Produtos afetados

Linux