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rootless: unshare mount namespace

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unshare the mount namespace as well when creating an user namespace so
that we are the owner of the mount namespace and we can mount FUSE
file systems on Linux 4.18.  Tested on Fedora Rawhide:

podman --storage-opt overlay.fuse_program=/usr/bin/fuse-overlayfs run alpine echo hello
hello

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2018-07-13 16:37:34 +02:00
parent 6f1dd44b29
commit 6ffcb98a70
1 changed files with 1 additions and 1 deletions
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2
pkg/rootless/rootless_linux.c
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@@ -92,7 +92,7 @@ reexec_in_user_namespace(int ready)
sprintf (uid, "%d", geteuid ());
pid = syscall_clone (CLONE_NEWUSER|SIGCHLD, NULL);
pid = syscall_clone (CLONE_NEWUSER|CLONE_NEWNS|SIGCHLD, NULL);
if (pid)
return pid;