Description: af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2066819
 https://lore.kernel.org/all/20220321215240.490132-2-sashal@kernel.org/
Notes:
Bugs:
upstream: released (5.17) [9a564bccb78a76740ea9d75a259942df8143d02c]
5.10-upstream-stable: released (5.10.110) [8d3f4ad43054619379ccc697cfcbdb2c266800d8]
4.19-upstream-stable: released (4.19.238) [693fe8af9a2625139de07bd1ae212a7d89c37795]
4.9-upstream-stable: released (4.9.311) [7b0e01a9b7f2aaeb6fa73b35864b1d7dc6e795c4]
sid: released (5.17.3-1)
5.10-bullseye-security: released (5.10.113-1)
4.19-buster-security: released (4.19.249-1)
4.9-stretch-security: released (4.9.320-2)