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authorOphestra <cat@gensokyo.uk>2025-08-20 00:27:45 +0900
committerOphestra <cat@gensokyo.uk>2025-08-20 00:43:55 +0900
commit13c7083bc028616e258e5e6919db7b11c6e739a6 (patch)
tree0a2e0d1cc85a8211bd1ddb72c628ab9eb0556abe /container/init.go
parent6947ff04e067bc7df1d9cf0ad993e3cab3568bf4 (diff)
container: ptrace protection via Yama LSM
This is only a nice to have feature as the init process has no additional privileges and the monitor process was never reachable anyway. Closes #4. Signed-off-by: Ophestra <cat@gensokyo.uk>
Diffstat (limited to 'container/init.go')
-rw-r--r--container/init.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/container/init.go b/container/init.go
index 885b543d..0f888fad 100644
--- a/container/init.go
+++ b/container/init.go
@@ -55,6 +55,11 @@ func Init(prepare func(prefix string), setVerbose func(verbose bool)) {
log.Fatal("this process must run as pid 1")
}
+ if err := SetPtracer(0); err != nil {
+ msg.Verbosef("cannot enable ptrace protection via Yama LSM: %v", err)
+ // not fatal: this program has no additional privileges at initial program start
+ }
+
var (
params initParams
closeSetup func() error