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path: root/vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go
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Diffstat (limited to 'vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go')
-rw-r--r--vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go13
1 files changed, 12 insertions, 1 deletions
diff --git a/vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go b/vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go
index 35b84219c..096c601e7 100644
--- a/vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go
+++ b/vendor/github.com/opencontainers/runc/libcontainer/setns_init_linux.go
@@ -47,7 +47,10 @@ func (l *linuxSetnsInit) Init() error {
return err
}
}
- if l.config.Config.Seccomp != nil {
+ // Without NoNewPrivileges seccomp is a privileged operation, so we need to
+ // do this before dropping capabilities; otherwise do it as late as possible
+ // just before execve so as few syscalls take place after it as possible.
+ if l.config.Config.Seccomp != nil && !l.config.NoNewPrivileges {
if err := seccomp.InitSeccomp(l.config.Config.Seccomp); err != nil {
return err
}
@@ -61,5 +64,13 @@ func (l *linuxSetnsInit) Init() error {
if err := label.SetProcessLabel(l.config.ProcessLabel); err != nil {
return err
}
+ // Set seccomp as close to execve as possible, so as few syscalls take
+ // place afterward (reducing the amount of syscalls that users need to
+ // enable in their seccomp profiles).
+ if l.config.Config.Seccomp != nil && l.config.NoNewPrivileges {
+ if err := seccomp.InitSeccomp(l.config.Config.Seccomp); err != nil {
+ return newSystemErrorWithCause(err, "init seccomp")
+ }
+ }
return system.Execv(l.config.Args[0], l.config.Args[0:], os.Environ())
}