PT-2026-98715 · Linux · Linux
CVE-2026-98052
·
Publicado
2026-09-25
·
Atualizado
2026-09-25
CVSS v3.1
7.8
Alta
| Vetor | AV: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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