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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
548c237c0a9972df5d1afaca38aa733ee577128d to < 6d7f8a23c130d768c0976c2578b214353674e18faffected548c237c0a9972df5d1afaca38aa733ee577128d to < 18781cc0bfb5c7f2a51ac6d678a28f101b7c35c5affected548c237c0a9972df5d1afaca38aa733ee577128d to < 272df0fbe6f3e04e22bc67fbdd9ac24586b942f4affected548c237c0a9972df5d1afaca38aa733ee577128d to < fcaf8ba7e56bb73319ac107a63b907d59536192caffected548c237c0a9972df5d1afaca38aa733ee577128d to < 3f2a15f33f86f7bd5b920669fd40c06725d72a1eaffected548c237c0a9972df5d1afaca38aa733ee577128d to < a4e340971fe8ccd245d206db4d43b2a0eec240bdaffected548c237c0a9972df5d1afaca38aa733ee577128d to < 755fd7843f300d724caceabdf9bb13adc8701540affected548c237c0a9972df5d1afaca38aa733ee577128d to < d2121faf133ac3bf9531b53a7e21273649a08517affected
Linux Linux
Default version status: affected
3.9affected0 to < 3.9unaffected5.10.267 to ≤ 5.10.*unaffected5.15.218 to ≤ 5.15.*unaffected6.1.185 to ≤ 6.1.*unaffected6.6.154 to ≤ 6.6.*unaffected6.12.106 to ≤ 6.12.*unaffected6.18.46 to ≤ 6.18.*unaffected7.1.9 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/6d7f8a23c130d768c0976c2578b214353674e18f ↗
- https://git.kernel.org/stable/c/18781cc0bfb5c7f2a51ac6d678a28f101b7c35c5 ↗
- https://git.kernel.org/stable/c/272df0fbe6f3e04e22bc67fbdd9ac24586b942f4 ↗
- https://git.kernel.org/stable/c/fcaf8ba7e56bb73319ac107a63b907d59536192c ↗
- https://git.kernel.org/stable/c/3f2a15f33f86f7bd5b920669fd40c06725d72a1e ↗
- https://git.kernel.org/stable/c/a4e340971fe8ccd245d206db4d43b2a0eec240bd ↗
- https://git.kernel.org/stable/c/755fd7843f300d724caceabdf9bb13adc8701540 ↗
- https://git.kernel.org/stable/c/d2121faf133ac3bf9531b53a7e21273649a08517 ↗