PT-2026-98715 · Linux · Linux

CVE-2026-98052

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Publicado

2026-09-25

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Atualizado

2026-09-25

CVSS v3.1

7.8

Alta

VetorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
In the Linux kernel, the following vulnerability has been resolved:
net: bcmasp: clear txcb->last before writing each descriptor
bcmasp xmit() only wrote txcb->last = true for the final fragment of an SKB; non-final fragments left the field untouched. If a descriptor slot was reused while it still held a stale true from a previous SKB (possible when tx spb ring full() underreported fullness), bcmasp tx reclaim() would see last == true mid-SKB and call dev consume skb any() prematurely, freeing the sk buff while its remaining fragments were still in flight.
Unconditionally clear txcb->last before the conditional set so every descriptor slot starts from a known false state regardless of what a prior transmission left behind.

Correção

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Identificadores relacionados

CVE-2026-98052

Produtos afetados

Linux