crasher: add a case that uses PR_SET_NO_NEW_PRIVS.
Bug: http://b/34684590
Test: crasher no_new_privs
Change-Id: I400d599116e3f3c27f5ea46d260e288cf900e156
diff --git a/debuggerd/crasher/crasher.cpp b/debuggerd/crasher/crasher.cpp
index 64a38dd..cd45bbb 100644
--- a/debuggerd/crasher/crasher.cpp
+++ b/debuggerd/crasher/crasher.cpp
@@ -26,6 +26,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
+#include <sys/prctl.h>
#include <unistd.h>
// We test both kinds of logging.
@@ -189,6 +190,8 @@
fprintf(stderr, " readdir-NULL pass a null pointer to readdir\n");
fprintf(stderr, " strlen-NULL pass a null pointer to strlen\n");
fprintf(stderr, "\n");
+ fprintf(stderr, " no_new_privs set PR_SET_NO_NEW_PRIVS and then abort\n");
+ fprintf(stderr, "\n");
fprintf(stderr, "prefix any of the above with 'thread-' to run on a new thread\n");
fprintf(stderr, "prefix any of the above with 'exhaustfd-' to exhaust\n");
fprintf(stderr, "all available file descriptors before crashing.\n");
@@ -276,6 +279,12 @@
} else if (!strcasecmp(arg, "kuser_cmpxchg64")) {
return __kuser_cmpxchg64(0, 0, 0);
#endif
+ } else if (!strcasecmp(arg, "no_new_privs")) {
+ if (prctl(PR_SET_NO_NEW_PRIVS, 1) != 0) {
+ fprintf(stderr, "prctl(PR_SET_NO_NEW_PRIVS, 1) failed: %s\n", strerror(errno));
+ return EXIT_SUCCESS;
+ }
+ abort();
} else {
return usage();
}