39 lines · c
1// RUN: %clang_scudo %s -o %t2// RUN: not %run %t malloc 2>&1 | FileCheck %s3// RUN: %env_scudo_opts=QuarantineSizeKb=64 not %run %t quarantine 2>&1 | FileCheck %s4 5// Tests that header corruption of an allocated or quarantined chunk is caught.6 7#include <assert.h>8#include <stdlib.h>9#include <string.h>10 11int main(int argc, char **argv) {12 ssize_t offset = sizeof(void *) == 8 ? 8 : 0;13 14 assert(argc == 2);15 16 if (!strcmp(argv[1], "malloc")) {17 // Simulate a header corruption of an allocated chunk (1-bit)18 void *p = malloc(1U << 4);19 assert(p);20 ((char *)p)[-(offset + 1)] ^= 1;21 free(p);22 }23 if (!strcmp(argv[1], "quarantine")) {24 void *p = malloc(1U << 4);25 assert(p);26 free(p);27 // Simulate a header corruption of a quarantined chunk28 ((char *)p)[-(offset + 2)] ^= 1;29 // Trigger the quarantine recycle30 for (int i = 0; i < 0x100; i++) {31 p = malloc(1U << 8);32 free(p);33 }34 }35 return 0;36}37 38// CHECK: ERROR: corrupted chunk header at address39