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Second invocation of privileged rootless podman under OpenShift SIGSEGVs #20766

Closed
adelton opened this issue Nov 23, 2023 · 6 comments · Fixed by #20769
Closed

Second invocation of privileged rootless podman under OpenShift SIGSEGVs #20766

adelton opened this issue Nov 23, 2023 · 6 comments · Fixed by #20769
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@adelton
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adelton commented Nov 23, 2023 •
edited

Issue Description

I follow https://www.redhat.com/sysadmin/podman-inside-kubernetes, running podman in an OpenShift cluster. The privileged case works fine but the

     securityContext:
       privileged: true
       runAsUser: 1000

fails upon the second invocation of podman with SIGSEGV.

Steps to reproduce the issue

Steps to reproduce the issue

  1. Log in with oc as a regular user. Check that oc whoami reports user.
  2. oc new-project podman-test
  3. Log in with oc as an admin user (user with cluster-admins group). Check that oc whoami reports admin.
  4. oc adm policy add-scc-to-user privileged -z default -n podman-test. We have to do this or the next oc apply step fails with 
    Error from server (Forbidden): error when creating "STDIN": pods "podman-priv" is forbidden: unable to validate against any security context constraint: [provider "anyuid": Forbidden: not usable by user or serviceaccount, provider restricted-v2: .containers[0].privileged: Invalid value: true: Privileged containers are not allowed, provider "restricted": Forbidden: not usable by user or serviceaccount, provider "nonroot-v2": Forbidden: not usable by user or serviceaccount, provider "nonroot": Forbidden: not usable by user or serviceaccount, provider "pcap-dedicated-admins": Forbidden: not usable by user or serviceaccount, provider "hostmount-anyuid": Forbidden: not usable by user or serviceaccount, provider "hostnetwork-v2": Forbidden: not usable by user or serviceaccount, provider "hostnetwork": Forbidden: not usable by user or serviceaccount, provider "hostaccess": Forbidden: not usable by user or serviceaccount, provider "node-exporter": Forbidden: not usable by user or serviceaccount, provider "privileged": Forbidden: not usable by user or serviceaccount]
  5. Log in with oc back as a regular user. Check that oc whoami reports user.
  6. $ oc apply -f -
apiVersion: v1
kind: Pod
metadata:
 name: podman-priv
spec:
 containers:
   - name: priv
     image: quay.io/podman/stable
     args:
       - sleep
       - "1000000"
     securityContext:
       privileged: true
<Ctrl-D>
  7. oc exec -it podman-priv -- podman info
  8. Again oc exec -it podman-priv -- podman info
  9. $ oc apply -f -
apiVersion: v1
kind: Pod
metadata:
 name: podman-rootless
spec:
 containers:
   - name: rootless
     image: quay.io/podman/stable
     args:
       - sleep
       - "1000000"
     securityContext:
       privileged: true
       runAsUser: 1000
<Ctrl-D>
  10. oc exec -it podman-rootless -- podman info
  11. Again oc exec -it podman-rootless -- podman info

Describe the results you received

The oc exec -it podman-priv -- podman info work all the time.

The oc exec -it podman-rootless -- podman info works the first time and the second time it prints

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x558b6cac00f3]

goroutine 1 [running]:
panic({0x558b6d3f32a0?, 0x558b6e1792b0?})
	/usr/lib/golang/src/runtime/panic.go:1017 +0x3ac fp=0xc00060f210 sp=0xc00060f160 pc=0x558b6bc7ad4c
runtime.panicmem(...)
	/usr/lib/golang/src/runtime/panic.go:261
runtime.sigpanic()
	/usr/lib/golang/src/runtime/signal_unix.go:861 +0x378 fp=0xc00060f270 sp=0xc00060f210 pc=0x558b6bc92738
github.com/containers/podman/v4/libpod.(*Runtime).hostInfo(0xc0004b0960)
	/builddir/build/BUILD/podman-4.7.2/libpod/info.go:125 +0x2f3 fp=0xc00060f7c8 sp=0xc00060f270 pc=0x558b6cac00f3
github.com/containers/podman/v4/libpod.(*Runtime).info(0xc0004b0960)
	/builddir/build/BUILD/podman-4.7.2/libpod/info.go:36 +0x1c5 fp=0xc00060fa68 sp=0xc00060f7c8 pc=0x558b6cabf785
github.com/containers/podman/v4/libpod.(*Runtime).Info(...)
	/builddir/build/BUILD/podman-4.7.2/libpod/runtime.go:896
github.com/containers/podman/v4/pkg/domain/infra/abi.(*ContainerEngine).Info(0xc000074078, {0x0?, 0x0?})
	/builddir/build/BUILD/podman-4.7.2/pkg/domain/infra/abi/system.go:28 +0x30 fp=0xc00060fb78 sp=0xc00060fa68 pc=0x558b6cbe6810
github.com/containers/podman/v4/cmd/podman/system.info(0x558b6e1af060?, {0x558b6e2ad1c0?, 0x0?, 0x0?})
	/builddir/build/BUILD/podman-4.7.2/cmd/podman/system/info.go:73 +0x73 fp=0xc00060fc30 sp=0xc00060fb78 pc=0x558b6cdf6ad3
github.com/spf13/cobra.(*Command).execute(0x558b6e1af060, {0xc0001c4090, 0x0, 0x0})
	/builddir/build/BUILD/podman-4.7.2/vendor/github.com/spf13/cobra/command.go:940 +0x87c fp=0xc00060fd68 sp=0xc00060fc30 pc=0x558b6c1d81bc
github.com/spf13/cobra.(*Command).ExecuteC(0x558b6e198620)
	/builddir/build/BUILD/podman-4.7.2/vendor/github.com/spf13/cobra/command.go:1068 +0x3a5 fp=0xc00060fe20 sp=0xc00060fd68 pc=0x558b6c1d89e5
github.com/spf13/cobra.(*Command).Execute(...)
	/builddir/build/BUILD/podman-4.7.2/vendor/github.com/spf13/cobra/command.go:992
github.com/spf13/cobra.(*Command).ExecuteContext(...)
	/builddir/build/BUILD/podman-4.7.2/vendor/github.com/spf13/cobra/command.go:985
main.Execute()
	/builddir/build/BUILD/podman-4.7.2/cmd/podman/root.go:114 +0xb8 fp=0xc00060fea8 sp=0xc00060fe20 pc=0x558b6ce0dc38
main.main()
	/builddir/build/BUILD/podman-4.7.2/cmd/podman/main.go:60 +0x467 fp=0xc00060ff40 sp=0xc00060fea8 pc=0x558b6ce0d367
runtime.main()
	/usr/lib/golang/src/runtime/proc.go:267 +0x2d2 fp=0xc00060ffe0 sp=0xc00060ff40 pc=0x558b6bc7dc12
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00060ffe8 sp=0xc00060ffe0 pc=0x558b6bcb1dc1

goroutine 2 [force gc (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000070fa8 sp=0xc000070f88 pc=0x558b6bc7e08e
runtime.goparkunlock(...)
	/usr/lib/golang/src/runtime/proc.go:404
runtime.forcegchelper()
	/usr/lib/golang/src/runtime/proc.go:322 +0xb8 fp=0xc000070fe0 sp=0xc000070fa8 pc=0x558b6bc7def8
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000070fe8 sp=0xc000070fe0 pc=0x558b6bcb1dc1
created by runtime.init.7 in goroutine 1
	/usr/lib/golang/src/runtime/proc.go:310 +0x1a

goroutine 18 [GC sweep wait]:
runtime.gopark(0x1?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc00006c778 sp=0xc00006c758 pc=0x558b6bc7e08e
runtime.goparkunlock(...)
	/usr/lib/golang/src/runtime/proc.go:404
runtime.bgsweep(0x0?)
	/usr/lib/golang/src/runtime/mgcsweep.go:321 +0xdf fp=0xc00006c7c8 sp=0xc00006c778 pc=0x558b6bc6853f
runtime.gcenable.func1()
	/usr/lib/golang/src/runtime/mgc.go:200 +0x25 fp=0xc00006c7e0 sp=0xc00006c7c8 pc=0x558b6bc5d645
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00006c7e8 sp=0xc00006c7e0 pc=0x558b6bcb1dc1
created by runtime.gcenable in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:200 +0x66

goroutine 19 [GC scavenge wait]:
runtime.gopark(0x1c687b?, 0x3b9aca00?, 0x0?, 0x0?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc00006cf70 sp=0xc00006cf50 pc=0x558b6bc7e08e
runtime.goparkunlock(...)
	/usr/lib/golang/src/runtime/proc.go:404
runtime.(*scavengerState).park(0x558b6e2769e0)
	/usr/lib/golang/src/runtime/mgcscavenge.go:425 +0x49 fp=0xc00006cfa0 sp=0xc00006cf70 pc=0x558b6bc65d89
runtime.bgscavenge(0x0?)
	/usr/lib/golang/src/runtime/mgcscavenge.go:658 +0x59 fp=0xc00006cfc8 sp=0xc00006cfa0 pc=0x558b6bc66339
runtime.gcenable.func2()
	/usr/lib/golang/src/runtime/mgc.go:201 +0x25 fp=0xc00006cfe0 sp=0xc00006cfc8 pc=0x558b6bc5d5e5
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00006cfe8 sp=0xc00006cfe0 pc=0x558b6bcb1dc1
created by runtime.gcenable in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:201 +0xa5

goroutine 34 [finalizer wait]:
runtime.gopark(0x558b6d615cc0?, 0x16bc7f201?, 0x0?, 0x0?, 0x558b6bc862a5?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000070628 sp=0xc000070608 pc=0x558b6bc7e08e
runtime.runfinq()
	/usr/lib/golang/src/runtime/mfinal.go:193 +0x107 fp=0xc0000707e0 sp=0xc000070628 pc=0x558b6bc5c6c7
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000707e8 sp=0xc0000707e0 pc=0x558b6bcb1dc1
created by runtime.createfing in goroutine 1
	/usr/lib/golang/src/runtime/mfinal.go:163 +0x3d

goroutine 35 [GC worker (idle)]:
runtime.gopark(0x10400000000?, 0x2?, 0x0?, 0x0?, 0xc0004bec30?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000356750 sp=0xc000356730 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc0003567e0 sp=0xc000356750 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0003567e8 sp=0xc0003567e0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 3 [GC worker (idle)]:
runtime.gopark(0x7b395da6295?, 0x3?, 0xf7?, 0xad?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000071750 sp=0xc000071730 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc0000717e0 sp=0xc000071750 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000717e8 sp=0xc0000717e0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 4 [GC worker (idle)]:
runtime.gopark(0x7b395d952c3?, 0x3?, 0x71?, 0xe3?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000071f50 sp=0xc000071f30 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc000071fe0 sp=0xc000071f50 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000071fe8 sp=0xc000071fe0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 36 [GC worker (idle)]:
runtime.gopark(0x7b395da6e9b?, 0xc000433ab0?, 0x0?, 0x0?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000356f50 sp=0xc000356f30 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc000356fe0 sp=0xc000356f50 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000356fe8 sp=0xc000356fe0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 5 [GC worker (idle)]:
runtime.gopark(0x7b395da6b05?, 0x3?, 0x61?, 0x6?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000072750 sp=0xc000072730 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc0000727e0 sp=0xc000072750 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000727e8 sp=0xc0000727e0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 37 [GC worker (idle)]:
runtime.gopark(0x7b395d96343?, 0x1?, 0xda?, 0xbc?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000357750 sp=0xc000357730 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc0003577e0 sp=0xc000357750 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0003577e8 sp=0xc0003577e0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 6 [GC worker (idle)]:
runtime.gopark(0x7b395da93f7?, 0x3?, 0x2e?, 0xff?, 0x0?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000072f50 sp=0xc000072f30 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc000072fe0 sp=0xc000072f50 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000072fe8 sp=0xc000072fe0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 38 [GC worker (idle)]:
runtime.gopark(0x7b395a79fda?, 0x0?, 0x2?, 0x0?, 0x2?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000357f50 sp=0xc000357f30 pc=0x558b6bc7e08e
runtime.gcBgMarkWorker()
	/usr/lib/golang/src/runtime/mgc.go:1293 +0xe5 fp=0xc000357fe0 sp=0xc000357f50 pc=0x558b6bc5f205
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000357fe8 sp=0xc000357fe0 pc=0x558b6bcb1dc1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/lib/golang/src/runtime/mgc.go:1217 +0x1c

goroutine 7 [select, locked to thread]:
runtime.gopark(0xc00006d7a8?, 0x2?, 0x29?, 0xe3?, 0xc00006d7a4?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc00006d638 sp=0xc00006d618 pc=0x558b6bc7e08e
runtime.selectgo(0xc00006d7a8, 0xc00006d7a0, 0x0?, 0x0, 0x0?, 0x1)
	/usr/lib/golang/src/runtime/select.go:327 +0x725 fp=0xc00006d758 sp=0xc00006d638 pc=0x558b6bc8e8a5
runtime.ensureSigM.func1()
	/usr/lib/golang/src/runtime/signal_unix.go:1014 +0x1a5 fp=0xc00006d7e0 sp=0xc00006d758 pc=0x558b6bca84a5
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00006d7e8 sp=0xc00006d7e0 pc=0x558b6bcb1dc1
created by runtime.ensureSigM in goroutine 1
	/usr/lib/golang/src/runtime/signal_unix.go:997 +0xc8

goroutine 39 [syscall]:
runtime.notetsleepg(0x0?, 0x0?)
	/usr/lib/golang/src/runtime/lock_futex.go:236 +0x29 fp=0xc0003547a0 sp=0xc000354768 pc=0x558b6bc4f429
os/signal.signal_recv()
	/usr/lib/golang/src/runtime/sigqueue.go:152 +0x29 fp=0xc0003547c0 sp=0xc0003547a0 pc=0x558b6bcae2e9
os/signal.loop()
	/usr/lib/golang/src/os/signal/signal_unix.go:23 +0x13 fp=0xc0003547e0 sp=0xc0003547c0 pc=0x558b6be18973
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0003547e8 sp=0xc0003547e0 pc=0x558b6bcb1dc1
created by os/signal.Notify.func1.1 in goroutine 1
	/usr/lib/golang/src/os/signal/signal.go:151 +0x1f

goroutine 40 [select]:
runtime.gopark(0xc000354fb0?, 0x2?, 0x0?, 0x0?, 0xc000354eac?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000080d38 sp=0xc000080d18 pc=0x558b6bc7e08e
runtime.selectgo(0xc000080fb0, 0xc000354ea8, 0xc00035fae0?, 0x0, 0x0?, 0x1)
	/usr/lib/golang/src/runtime/select.go:327 +0x725 fp=0xc000080e58 sp=0xc000080d38 pc=0x558b6bc8e8a5
github.com/containers/podman/v4/libpod/shutdown.Start.func1()
	/builddir/build/BUILD/podman-4.7.2/libpod/shutdown/handler.go:48 +0x87 fp=0xc000080fe0 sp=0xc000080e58 pc=0x558b6c9c1527
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000080fe8 sp=0xc000080fe0 pc=0x558b6bcb1dc1
created by github.com/containers/podman/v4/libpod/shutdown.Start in goroutine 1
	/builddir/build/BUILD/podman-4.7.2/libpod/shutdown/handler.go:47 +0xf1

goroutine 41 [chan receive]:
runtime.gopark(0xc0002f6690?, 0x1?, 0x0?, 0x0?, 0xd4?)
	/usr/lib/golang/src/runtime/proc.go:398 +0xce fp=0xc000355708 sp=0xc0003556e8 pc=0x558b6bc7e08e
runtime.chanrecv(0xc000576540, 0xc0003557c8, 0x1)
	/usr/lib/golang/src/runtime/chan.go:583 +0x3cd fp=0xc000355780 sp=0xc000355708 pc=0x558b6bc49d0d
runtime.chanrecv2(0xc0003faa80?, 0x0?)
	/usr/lib/golang/src/runtime/chan.go:447 +0x12 fp=0xc0003557a8 sp=0xc000355780 pc=0x558b6bc49932
github.com/containers/podman/v4/libpod.(*Runtime).startWorker.func1()
	/builddir/build/BUILD/podman-4.7.2/libpod/runtime_worker.go:6 +0x6c fp=0xc0003557e0 sp=0xc0003557a8 pc=0x558b6cb21bac
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0003557e8 sp=0xc0003557e0 pc=0x558b6bcb1dc1
created by github.com/containers/podman/v4/libpod.(*Runtime).startWorker in goroutine 1
	/builddir/build/BUILD/podman-4.7.2/libpod/runtime_worker.go:5 +0x8e
command terminated with exit code 134

Describe the results you expected

No SIGSEGV, good behaviour every time.

podman info output

This is from the first `oc exec -it podman-rootless -- podman info`, before it started failing:

host:
  arch: amd64
  buildahVersion: 1.32.0
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.8-2.fc39.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.8, commit: '
  cpuUtilization:
    idlePercent: 97.84
    systemPercent: 0.6
    userPercent: 1.56
  cpus: 8
  databaseBackend: boltdb
  distribution:
    distribution: fedora
    variant: container
    version: "39"
  eventLogger: file
  freeLocks: 2048
  hostname: podman-rootless
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 1
      size: 999
    - container_id: 1000
      host_id: 1001
      size: 64535
    uidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 1
      size: 999
    - container_id: 1000
      host_id: 1001
      size: 64535
  kernel: 5.14.0-284.40.1.el9_2.x86_64
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 18485194752
  memTotal: 33100292096
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: aardvark-dns-1.8.0-1.fc39.x86_64
      path: /usr/libexec/podman/aardvark-dns
      version: aardvark-dns 1.8.0
    package: netavark-1.8.0-2.fc39.x86_64
    path: /usr/libexec/podman/netavark
    version: netavark 1.8.0
  ociRuntime:
    name: crun
    package: crun-1.11.2-1.fc39.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.11.2
      commit: ab0edeef1c331840b025e8f1d38090cfb8a0509d
      rundir: /run/user/1000/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
  os: linux
  pasta:
    executable: /usr/bin/pasta
    package: passt-0^20231107.g56d9f6d-1.fc39.x86_64
    version: |
      pasta 0^20231107.g56d9f6d-1.fc39.x86_64
      Copyright Red Hat
      GNU General Public License, version 2 or later
        <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    exists: false
    path: /run/user/1000/podman/podman.sock
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.2-1.fc39.x86_64
    version: |-
      slirp4netns version 1.2.2
      commit: 0ee2d87523e906518d34a6b423271e4826f71faf
      libslirp: 4.7.0
      SLIRP_CONFIG_VERSION_MAX: 4
      libseccomp: 2.5.3
  swapFree: 0
  swapTotal: 0
  uptime: 2h 21m 4.00s (Approximately 0.08 days)
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
  - quay.io
store:
  configFile: /home/podman/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/podman/.local/share/containers/storage
  graphRootAllocated: 321517498368
  graphRootUsed: 16652500992
  graphStatus:
    Backing Filesystem: overlayfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Supports shifting: "true"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 0
  runRoot: /tmp/containers-user-1000/containers
  transientStore: false
  volumePath: /home/podman/.local/share/containers/storage/volumes
version:
  APIVersion: 4.7.2
  Built: 1698762721
  BuiltTime: Tue Oct 31 14:32:01 2023
  GitCommit: ""
  GoVersion: go1.21.1
  Os: linux
  OsArch: linux/amd64
  Version: 4.7.2

Podman in a container

Yes

Privileged Or Rootless

Privileged

Upstream Latest Release

Yes

Additional environment details

Additional environment details

Additional information

Additional information like issue happens only occasionally or issue happens with a particular architecture or on a particular setting
@adelton adelton added the kind/bug Categorizes issue or PR as related to a bug. label Nov 23, 2023
@Luap99
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Luap99 commented Nov 24, 2023

Line points to

podman/libpod/info.go

Line 125 in 750b4c3

NetworkBackendInfo: r.network.NetworkInfo(),

Can you run the command with --log-level debug it is not clear to me why that would ever be nil there, as best as I Can tell something is preventing us from rexec in the userns and we do not configure the storage or network when that happens.

giuseppe added a commit to giuseppe/libpod that referenced this issue Nov 24, 2023
@giuseppe
ystem: enhance check for re-exec into rootless userns
282cbdc 
Previously, the setup only checked for the CAP_SYS_ADMIN capability,
which could be not enough with containerized Podman where
CAP_SYS_ADMIN might be set for an unprivileged user.

Closes: containers#20766

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
giuseppe added a commit to giuseppe/libpod that referenced this issue Nov 24, 2023
@giuseppe
system: enhance check for re-exec into rootless userns
41a6b99 
Previously, the setup only checked for the CAP_SYS_ADMIN capability,
which could be not enough with containerized Podman where
CAP_SYS_ADMIN might be set for an unprivileged user.

Closes: containers#20766

[NO NEW TESTS NEEDED] needs containerized Podman

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
@giuseppe giuseppe mentioned this issue Nov 24, 2023
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@giuseppe
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opened a PR: #20769

This is a bit weird corner case as it requires podman to run with euid != 0 and CAP_SYS_ADMIN, which is a big hammer in this case since it applies to the host.

To reproduce with Podman you need:

$ podman run -it --rm --user 1000 --cap-add ALL -ti quay.io/podman/stable sh -c 'podman info; podman info'

@adelton
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adelton commented Dec 4, 2023

Thanks for the fix, @giuseppe. Are there some (nightly?) images somewhere where the fixed build would be available before the next release?

@giuseppe
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giuseppe commented Dec 5, 2023

you could use the copr build for each PR, e.g.: https://copr.fedorainfracloud.org/coprs/packit/containers-podman-20769/build/6691155/

@Luap99
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Luap99 commented Dec 5, 2023

There should be a ready to use quay.io/podman/upstream image that is build based on the podman-next copr.

@adelton
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adelton commented Dec 5, 2023

Thanks!

@adelton adelton mentioned this issue Dec 5, 2023
Closed
openshift-cherrypick-robot pushed a commit to openshift-cherrypick-robot/podman that referenced this issue Jan 30, 2024
@giuseppe
system: enhance check for re-exec into rootless userns
b3ec3c9 
Previously, the setup only checked for the CAP_SYS_ADMIN capability,
which could be not enough with containerized Podman where
CAP_SYS_ADMIN might be set for an unprivileged user.

Closes: containers#20766

[NO NEW TESTS NEEDED] needs containerized Podman

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
giuseppe added a commit to giuseppe/libpod that referenced this issue Jan 30, 2024
@giuseppe
system: enhance check for re-exec into rootless userns
b2d2261 
Previously, the setup only checked for the CAP_SYS_ADMIN capability,
which could be not enough with containerized Podman where
CAP_SYS_ADMIN might be set for an unprivileged user.

Closes: containers#20766

[NO NEW TESTS NEEDED] needs containerized Podman

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
(cherry picked from commit 41a6b99)
@github-actions github-actions bot added the locked - please file new issue/PR Assist humans wanting to comment on an old issue or PR with locked comments. label Mar 5, 2024
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Mar 5, 2024
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system: enhance check for re-exec into rootless userns giuseppe/libpod
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@giuseppe @adelton @Luap99