Update privesc.md

Author: amsclark

privesc.md

@@ -7,3 +7,8 @@ Check what low-level user can run as root:
 ```
 sudo -l
 ```
+I have had it happen before that LinPeas / Linux Exploit Suggester don't flag a kernel vuln. So always also do:
+```
+uname -a
+```
+And search for any kernel vulns.