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path: root/pkg/specgen/generate/security.go
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Diffstat (limited to 'pkg/specgen/generate/security.go')
-rw-r--r--pkg/specgen/generate/security.go10
1 files changed, 9 insertions, 1 deletions
diff --git a/pkg/specgen/generate/security.go b/pkg/specgen/generate/security.go
index d17cd4a9a..dee140282 100644
--- a/pkg/specgen/generate/security.go
+++ b/pkg/specgen/generate/security.go
@@ -135,7 +135,9 @@ func securityConfigureGenerator(s *specgen.SpecGenerator, g *generate.Generator,
configSpec.Process.Capabilities.Bounding = caplist
configSpec.Process.Capabilities.Inheritable = caplist
- if s.User == "" || s.User == "root" || s.User == "0" {
+ user := strings.Split(s.User, ":")[0]
+
+ if (user == "" && s.UserNS.NSMode != specgen.KeepID) || user == "root" || user == "0" {
configSpec.Process.Capabilities.Effective = caplist
configSpec.Process.Capabilities.Permitted = caplist
} else {
@@ -145,6 +147,12 @@ func securityConfigureGenerator(s *specgen.SpecGenerator, g *generate.Generator,
}
configSpec.Process.Capabilities.Effective = userCaps
configSpec.Process.Capabilities.Permitted = userCaps
+
+ // Ambient capabilities were added to Linux 4.3. Set ambient
+ // capabilities only when the kernel supports them.
+ if supportAmbientCapabilities() {
+ configSpec.Process.Capabilities.Ambient = userCaps
+ }
}
g.SetProcessNoNewPrivileges(s.NoNewPrivileges)