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-rw-r--r--pkg/sentry/syscalls/linux/sys_prctl.go18
1 files changed, 18 insertions, 0 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_prctl.go b/pkg/sentry/syscalls/linux/sys_prctl.go
index a892d2c62..9890dd946 100644
--- a/pkg/sentry/syscalls/linux/sys_prctl.go
+++ b/pkg/sentry/syscalls/linux/sys_prctl.go
@@ -172,6 +172,24 @@ func Prctl(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
}
return 1, nil, nil
+ case linux.PR_SET_PTRACER:
+ pid := args[1].Int()
+ switch pid {
+ case 0:
+ t.ClearYAMAException()
+ return 0, nil, nil
+ case linux.PR_SET_PTRACER_ANY:
+ t.SetYAMAException(nil)
+ return 0, nil, nil
+ default:
+ tracer := t.PIDNamespace().TaskWithID(kernel.ThreadID(pid))
+ if tracer == nil {
+ return 0, nil, syserror.EINVAL
+ }
+ t.SetYAMAException(tracer)
+ return 0, nil, nil
+ }
+
case linux.PR_SET_SECCOMP:
if args[1].Int() != linux.SECCOMP_MODE_FILTER {
// Unsupported mode.