Description: vhost: use kzalloc() instead of kmalloc() followed by memset()
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2257406
 https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/
Notes:
Bugs:
upstream: released (6.4-rc6) [4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9]
6.1-upstream-stable: released (6.1.78) [4675661672e3730597babf97c4e9593a775c8917]
5.10-upstream-stable: released (5.10.210) [cda4ca038cafe016bd8dcac8cac83d771dfdcbf0]
4.19-upstream-stable: released (4.19.307) [95eab1039625d54d1770665756dd34e9fe926638]
sid: released (6.4.4-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: needed
4.19-buster-security: pending (4.19.309-1)