Description: Xen Arm guests can cause Dom0 DoS via PV devices
References:
 https://xenbits.xen.org/xsa/advisory-406.html
Notes:
 carnil> For 5.18.y fixed as well in 5.18.10.
Bugs:
upstream: released (5.19-rc6) [b75cd218274e01d026dc5240e86fdeb44bbed0c8]
5.10-upstream-stable: released (5.10.129) [43c8d33ce353091f15312cb6de3531517d7bba90]
4.19-upstream-stable: released (4.19.251) [274cb74da15ed13292fcec9097f04332eb3eea17]
sid: released (5.18.14-1)
5.10-bullseye-security: released (5.10.127-2) [bugfix/all/xen-arm-fix-race-in-rb-tree-based-p2m-accounting.patch]
4.19-buster-security: released (4.19.260-1)