security: Add AID_NET_RAW and AID_NET_ADMIN capability check in cap_capable().
Signed-off-by: Chia-chi Yeh <chiachi@android.com>
diff --git a/security/commoncap.c b/security/commoncap.c
index a93b3b7..1322b6a 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -29,6 +29,10 @@
#include <linux/securebits.h>
#include <linux/user_namespace.h>
+#ifdef CONFIG_ANDROID_PARANOID_NETWORK
+#include <linux/android_aid.h>
+#endif
+
/*
* If a non-root user executes a setuid-root binary in
* !secure(SECURE_NOROOT) mode, then we raise capabilities.
@@ -83,6 +87,11 @@
int cap_capable(struct task_struct *tsk, const struct cred *cred,
struct user_namespace *targ_ns, int cap, int audit)
{
+ if (cap == CAP_NET_RAW && in_egroup_p(AID_NET_RAW))
+ return 0;
+ if (cap == CAP_NET_ADMIN && in_egroup_p(AID_NET_ADMIN))
+ return 0;
+
for (;;) {
/* The creator of the user namespace has all caps. */
if (targ_ns != &init_user_ns && targ_ns->creator == cred->user)