PT-2026-122003
CVE-2026-99026
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Publicado
2026-10-23
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Atualizado
2026-10-23
Descrição por
Pontuação
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In the Linux kernel, the following vulnerability has been resolved:
net: team: free skb when broadcast has no txable port
bc transmit() sends the original skb through the last txable port.
When no port is txable, it returns false without consuming the skb, but
team xmit() still returns NETDEV TX OK. AF PACKET sends then retain the
skb and its socket write-memory charge.
A TX-enabled, link-down port keeps the broadcast transmit op installed.
Carrier can stay up through a second link-up, TX-disabled port or be
forced on by userspace. Free the original skb on the no-port path while
leaving the existing drop accounting intact.
Discovered by Sashiko during review of previous commit.
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