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crasher: add a case that uses PR_SET_NO_NEW_PRIVS. 

Bug: http://b/34684590
Test: crasher no_new_privs
Change-Id: I400d599116e3f3c27f5ea46d260e288cf900e156
This commit is contained in:
Josh Gao 2017-02-09 12:37:39 -08:00
parent 42aa9a1415
commit 91ad653c82
1 changed files with 9 additions and 0 deletions
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9
debuggerd/crasher/crasher.cpp
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@ -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 @@ static int usage() {
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 @@ noinline int do_action(const char* arg) {
} 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();
}