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The set of bounding capabilities is the largest group

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No capabilities can be granted outside the bounding set, so there
is no point looking at any other set for the largest scope.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2018-03-28 15:31:26 -07:00
parent 79963209f6
commit 9435aeeb30
No known key found for this signature in database
GPG Key ID: 609102888A2EE3F9
1 changed files with 3 additions and 19 deletions
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22
contrib/seccomp/seccomp_default.go
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@ -444,25 +444,8 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
})
}
// make a map of enabled capabilities
caps := make(map[string]bool)
admin := false
for _, c := range sp.Process.Capabilities.Bounding {
caps[c] = true
}
for _, c := range sp.Process.Capabilities.Effective {
caps[c] = true
}
for _, c := range sp.Process.Capabilities.Inheritable {
caps[c] = true
}
for _, c := range sp.Process.Capabilities.Permitted {
caps[c] = true
}
for _, c := range sp.Process.Capabilities.Ambient {
caps[c] = true
}
for c := range caps {
switch c {
case "CAP_DAC_READ_SEARCH":
s.Syscalls = append(s.Syscalls, specs.LinuxSyscall{
@ -471,6 +454,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
Args: []specs.LinuxSeccompArg{},
})
case "CAP_SYS_ADMIN":
admin = true
s.Syscalls = append(s.Syscalls, specs.LinuxSyscall{
Names: []string{
"bpf",
@ -558,7 +542,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
}
}
if !caps["CAP_SYS_ADMIN"] {
if !admin {
switch runtime.GOARCH {
case "s390", "s390x":
s.Syscalls = append(s.Syscalls, specs.LinuxSyscall{