Description: sysctl: Fix out of bounds access for empty sysctl registers
References:
Notes:
 carnil> First introducing commit could not be determined.
Bugs:
upstream: released (6.8-rc1) [315552310c7de92baea4e570967066569937a843]
6.7-upstream-stable: released (6.7.4) [2ae7081bc10123b187e36a4f3a8e53768de31489]
6.6-upstream-stable: released (6.6.16) [15893975e9e382f8294ea8d926f08dc2d8d39ede]
6.1-upstream-stable: needed
5.10-upstream-stable: needed
4.19-upstream-stable: needed
sid: released (6.7.7-1)
6.1-bookworm-security: needed
5.10-bullseye-security: needed
4.19-buster-security: needed