Description: epoll: do not insert into poll queues until all sanity checks are done
References:
 https://source.android.com/security/bulletin/2022-01-01
Notes:
Bugs:
upstream: released (5.9-rc8) [f8d4f44df056c5b504b0d49683fb7279218fd207]
5.10-upstream-stable: N/A "Fixed before branching point"
4.19-upstream-stable: released (4.19.150) [3e3bbc4d23eeb90bf282e98c7dfeca7702df3169]
4.9-upstream-stable: released (4.9.239) [ea984dfe0e7978cd294eb6a640ac27fa1834ac8d]
sid: released (5.8.14-1)
5.10-bullseye-security: N/A "Fixed before branching point"
4.19-buster-security: released (4.19.152-1)
4.9-stretch-security: released (4.9.240-1)