CVE-2022-48911 Information

Description

In the Linux kernel the following vulnerability has been resolved:

netfilter: nf_queue: fix possible use-after-free

Eric Dumazet says: The sock_hold() side seems suspect because there is no guarantee that sk_refcnt is not already 0.

On failure we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change

Reference

https://git.kernel.org/stable/c/21b27b2baa27423286e9b8d3f0b194d587083d95 https://git.kernel.org/stable/c/ef97921ccdc243170fcef857ba2a17cf697aece5 https://git.kernel.org/stable/c/34dc4a6a7f261736ef7183868a5bddad31c7f9e3 https://git.kernel.org/stable/c/43c25da41e3091b31a906651a43e80a2719aa1ff https://git.kernel.org/stable/c/4d05239203fa38ea8a6f31e228460da4cb17a71a https://git.kernel.org/stable/c/dd648bd1b33a828f62befa696b206c688da0ec43 https://git.kernel.org/stable/c/dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee https://git.kernel.org/stable/c/c3873070247d9e3c7a6b0cf9bf9b45e8018427b1