Detections
Analytics
CVE-2026-74626
high
Description
In the Linux kernel, the following vulnerability has been resolved: NTB: ntb_netdev: Preserve RX queue depth on allocation failure ntb_netdev_rx_handler() hands the received skb to the network stack before allocating its replacement. If the allocation fails, nothing is reposted. Every failure therefore takes one buffer out of the RX queue while the interface remains up, and enough failures eventually stall reception. A retry path could refill the queue later, but ntb_netdev has none. Allocate the replacement first instead. If that fails, drop the packet and repost the same skb. This keeps the queue full and lets packet delivery resume as soon as memory is available again.
References
https://git.kernel.org/stable/c/fcaf8ba7e56bb73319ac107a63b907d59536192c
https://git.kernel.org/stable/c/d2121faf133ac3bf9531b53a7e21273649a08517
https://git.kernel.org/stable/c/a4e340971fe8ccd245d206db4d43b2a0eec240bd
https://git.kernel.org/stable/c/755fd7843f300d724caceabdf9bb13adc8701540
https://git.kernel.org/stable/c/6d7f8a23c130d768c0976c2578b214353674e18f
https://git.kernel.org/stable/c/3f2a15f33f86f7bd5b920669fd40c06725d72a1e
https://git.kernel.org/stable/c/272df0fbe6f3e04e22bc67fbdd9ac24586b942f4
https://git.kernel.org/stable/c/18781cc0bfb5c7f2a51ac6d678a28f101b7c35c5