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Mount IPC sockets with noexec flag

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This change ensures that the CDI spec mounts the ipc sockets with the
noexec flag to allow these to function in rootless mode with podman.

Signed-off-by: Evan Lezar <elezar@nvidia.com>
This commit is contained in:
Evan Lezar 2022-10-21 15:28:45 +02:00
parent 5fb0ae2c2d
commit f8748bfa9a
1 changed files with 13 additions and 8 deletions
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21
cmd/nvidia-ctk/info/generate-cdi/generate-cdi.go
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@ -208,7 +208,17 @@ func (m command) generateSpec() (*specs.Spec, error) {
return nil, fmt.Errorf("failed to locate driver IPC sockets: %v", err) return nil, fmt.Errorf("failed to locate driver IPC sockets: %v", err)
} }
spec.ContainerEdits.Mounts = generateMountsForPaths(libraries, binaries, ipcs) libOptions := []string{
"ro",
"nosuid",
"nodev",
"bind",
}
ipcOptions := append(libOptions, "noexec")
spec.ContainerEdits.Mounts = append(
generateMountsForPaths(libOptions, libraries, binaries),
generateMountsForPaths(ipcOptions, ipcs)...,
)
ldcacheUpdateHook := m.generateUpdateLdCacheHook(libraries) ldcacheUpdateHook := m.generateUpdateLdCacheHook(libraries)
@ -346,7 +356,7 @@ func (m command) findIPC() ([]string, error) {
return ipcs, nil return ipcs, nil
} }
func generateMountsForPaths(pathSets ...[]string) []*specs.Mount { func generateMountsForPaths(options []string, pathSets ...[]string) []*specs.Mount {
var mounts []*specs.Mount var mounts []*specs.Mount
for _, paths := range pathSets { for _, paths := range pathSets {
for _, p := range paths { for _, p := range paths {
@ -355,12 +365,7 @@ func generateMountsForPaths(pathSets ...[]string) []*specs.Mount {
// We may want to adjust the container path // We may want to adjust the container path
ContainerPath: p, ContainerPath: p,
Type: "bind", Type: "bind",
Options: []string{ Options: options,
"ro",
"nosuid",
"nodev",
"bind",
},
} }
mounts = append(mounts, &mount) mounts = append(mounts, &mount)
} }