[20.10 beta] Unknown capability "CAP_PERFMON" on Linux 5.8.14

[aiordache]

Running a DIND container fails on an Arch Linux with 5.8.14 kernel.

Steps to reproduce the issue:

$ docker run --rm -d -p "2375:2375" --privileged -e "DOCKER_TLS_CERTDIR=" --name dind docker:19.03.3-dind

Describe the results you received:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:370: starting container process caused: unknown capability "CAP_PERFMON": unknown.

Describe the results you expected:
A running DIND container.

Output of docker version:

Client: Docker Engine - Community
 Version:           20.10.0-beta1
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        ac365d7
 Built:             Tue Oct 13 18:13:41 2020
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.0-beta1
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       9c15e82
  Built:            Tue Oct 13 18:17:18 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v1.4.1
  GitCommit:        c623d1b36f09f8ef6536a057bd658b3aa8632828
 runc:
  Version:          1.0.0-rc92
  GitCommit:        ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Output of docker info:

$ docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.4.2-27-gac2e081-tp-docker)

Server:
 Containers: 1
  Running: 0
  Paused: 0
  Stopped: 1
 Images: 15
 Server Version: 20.10.0-beta1
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc io.containerd.runc.v2 io.containerd.runtime.v1.linux
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: c623d1b36f09f8ef6536a057bd658b3aa8632828
 runc version: ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 5.8.14-arch1-1
 Operating System: Arch Linux
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 15.38GiB
 Name: coldwave
 ID: KLCY:J2HM:MPJB:PQMJ:7VVB:3B3H:DDM6:CKAV:EQS3:I5IY:HYCG:JZ3H
 Docker Root Dir: /home/anca/.local/docker
 Debug Mode: true
  File Descriptors: 22
  Goroutines: 35
  System Time: 2020-10-16T16:27:34.896840907+02:00
  EventsListeners: 0
 Username: ancaiordache
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Product License: Community Engine

WARNING: No blkio weight support
WARNING: No blkio weight_device support

Additional environment details (AWS, VirtualBox, physical, etc.):
Arch Linux 5.8.14-arch1-1

[thaJeztah]

Introduced by #41460
I opened #41563 with a (temporary) fix; the PR describes why this is happening

[goldyfruit]

Same issue here, thanks for the PR! 👍