CVE-2026-74626
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
22/08/2026
Última modificación:
23/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
NTB: ntb_netdev: Preserve RX queue depth on allocation failure<br />
<br />
ntb_netdev_rx_handler() hands the received skb to the network stack<br />
before allocating its replacement. If the allocation fails, nothing is<br />
reposted. Every failure therefore takes one buffer out of the RX queue<br />
while the interface remains up, and enough failures eventually stall<br />
reception.<br />
<br />
A retry path could refill the queue later, but ntb_netdev has none.<br />
Allocate the replacement first instead. If that fails, drop the packet<br />
and repost the same skb. This keeps the queue full and lets packet<br />
delivery resume as soon as memory is available again.


