CVE-2024-39293

In the Linux kernel, the following vulnerability has been resolved:

Revert "xsk: Support redirect to any socket bound to the same umem"

This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db.

This patch introduced a potential kernel crash when multiple napi instances

redirect to the same AF_XDP socket. By removing the queue_index check, it is

possible for multiple napi instances to access the Rx ring at the same time,

which will result in a corrupted ring state which can lead to a crash when

flushing the rings in __xsk_flush(). This can happen when the linked list of

sockets to flush gets corrupted by concurrent accesses. A quick and small fix

is not possible, so let us revert this for now.