CVE-2026-74626

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.