Description: net_sched: cls_route: remove the right filter from hashtable
References:
 https://www.openwall.com/lists/oss-security/2021/09/07/1
Notes:
Bugs:
upstream: released (5.6) [ef299cc3fa1a9e1288665a9fdc8bff55629fd359]
5.10-upstream-stable: N/A "Fixed before branching point"
4.19-upstream-stable: released (4.19.114) [ea3d6652c240978736a91b9e85fde9fee9359be4]
4.9-upstream-stable: released (4.9.218) [97a8e7afaee8fc4f08662cf8e4f495b87874aa91]
sid: released (5.5.17-1)
5.10-bullseye-security: N/A "Fixed before branching point"
4.19-buster-security: released (4.19.118-1)
4.9-stretch-security: released (4.9.228-1)