ad85e10075
Upstream commit: commit 6484ae5b8c4d4314f748e4d3c9a9baa5385e57c5 - malloc: Fix -Wuse-after-free warning in tst-mallocalign1 [BZ #26779] - s_sincosf.h: Change pio4 type to float [BZ #28713] - math: Properly cast X_TLOSS to float [BZ #28713] - Regenerate ulps on x86_64 with GCC 12 - Avoid -Wuse-after-free in tests [BZ #26779]. - Fix build of nptl/tst-thread_local1.cc with GCC 12 - Fix stdio-common tests for GCC 12 -Waddress - Fix stdlib/tst-setcontext.c for GCC 12 -Warray-compare - resolv: Avoid GCC 12 false positive warning [BZ #28439]. - intl: Avoid -Wuse-after-free [BZ #26779] - elf: Drop elf/tls-macros.h in favor of __thread and tls_model attributes [BZ #28152] [BZ #28205] - time: Set daylight to 1 for matching DST/offset change (RHBZ#2155352) - elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776) - time: Use 64 bit time on tzfile - nscd: Use 64 bit time_t on libc nscd routines (BZ# 29402) - nis: Build libnsl with 64 bit time_t - Use LFS and 64 bit time for installed programs (BZ #15333) Resolves: #2155352 Related: #2160734
177 lines
5.4 KiB
Diff
177 lines
5.4 KiB
Diff
commit 88b3228d9f6322b035fa89bb34f82d93b4190d48
|
|
Author: Martin Sebor <msebor@redhat.com>
|
|
Date: Tue Jan 25 15:39:38 2022 -0700
|
|
|
|
Avoid -Wuse-after-free in tests [BZ #26779].
|
|
|
|
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
|
|
(cherry picked from commit c094c232eb3246154265bb035182f92fe1b17ab8)
|
|
|
|
diff --git a/malloc/tst-malloc-backtrace.c b/malloc/tst-malloc-backtrace.c
|
|
index 4eb42e7f32f706e9..2ae3fb11efc245cb 100644
|
|
--- a/malloc/tst-malloc-backtrace.c
|
|
+++ b/malloc/tst-malloc-backtrace.c
|
|
@@ -20,6 +20,7 @@
|
|
#include <stdlib.h>
|
|
|
|
#include <support/support.h>
|
|
+#include <libc-diag.h>
|
|
|
|
#define SIZE 4096
|
|
|
|
@@ -29,7 +30,15 @@ __attribute__((noinline))
|
|
call_free (void *ptr)
|
|
{
|
|
free (ptr);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a valid warning about using a pointer made indeterminate
|
|
+ by a prior call to free(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
*(size_t *)(ptr - sizeof (size_t)) = 1;
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
}
|
|
|
|
int
|
|
diff --git a/malloc/tst-malloc-check.c b/malloc/tst-malloc-check.c
|
|
index 6650d09cf6cdde75..c5c9254a9e8936b0 100644
|
|
--- a/malloc/tst-malloc-check.c
|
|
+++ b/malloc/tst-malloc-check.c
|
|
@@ -87,7 +87,15 @@ do_test (void)
|
|
merror ("errno is not set correctly.");
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a valid warning about using a pointer made indeterminate
|
|
+ by a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
free (p);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
|
|
p = malloc (512);
|
|
if (p == NULL)
|
|
@@ -105,7 +113,15 @@ do_test (void)
|
|
merror ("errno is not set correctly.");
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a valid warning about using a pointer made indeterminate
|
|
+ by a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
free (p);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
free (q);
|
|
|
|
return errors != 0;
|
|
diff --git a/malloc/tst-malloc-too-large.c b/malloc/tst-malloc-too-large.c
|
|
index a4349a9b4c506dfc..328b4a2a4fd72cf4 100644
|
|
--- a/malloc/tst-malloc-too-large.c
|
|
+++ b/malloc/tst-malloc-too-large.c
|
|
@@ -95,7 +95,15 @@ test_large_allocations (size_t size)
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
#endif
|
|
TEST_VERIFY (errno == ENOMEM);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a warning about using a pointer made indeterminate by
|
|
+ a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
free (ptr_to_realloc);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
|
|
for (size_t nmemb = 1; nmemb <= 8; nmemb *= 2)
|
|
if ((size % nmemb) == 0)
|
|
@@ -113,14 +121,30 @@ test_large_allocations (size_t size)
|
|
test_setup ();
|
|
TEST_VERIFY (reallocarray (ptr_to_realloc, nmemb, size / nmemb) == NULL);
|
|
TEST_VERIFY (errno == ENOMEM);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a warning about using a pointer made indeterminate by
|
|
+ a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
free (ptr_to_realloc);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
|
|
ptr_to_realloc = malloc (16);
|
|
TEST_VERIFY_EXIT (ptr_to_realloc != NULL);
|
|
test_setup ();
|
|
TEST_VERIFY (reallocarray (ptr_to_realloc, size / nmemb, nmemb) == NULL);
|
|
TEST_VERIFY (errno == ENOMEM);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a warning about using a pointer made indeterminate by
|
|
+ a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
free (ptr_to_realloc);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
}
|
|
else
|
|
break;
|
|
diff --git a/malloc/tst-obstack.c b/malloc/tst-obstack.c
|
|
index ee1385d0f764e368..7d700c4f9a86b676 100644
|
|
--- a/malloc/tst-obstack.c
|
|
+++ b/malloc/tst-obstack.c
|
|
@@ -21,8 +21,8 @@ verbose_malloc (size_t size)
|
|
static void
|
|
verbose_free (void *buf)
|
|
{
|
|
- free (buf);
|
|
printf ("free (%p)\n", buf);
|
|
+ free (buf);
|
|
}
|
|
|
|
static int
|
|
diff --git a/malloc/tst-realloc.c b/malloc/tst-realloc.c
|
|
index c89ac07e192d70eb..80711beab1257ed5 100644
|
|
--- a/malloc/tst-realloc.c
|
|
+++ b/malloc/tst-realloc.c
|
|
@@ -138,8 +138,16 @@ do_test (void)
|
|
if (ok == 0)
|
|
merror ("first 16 bytes were not correct after failed realloc");
|
|
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ /* Ignore a valid warning about using a pointer made indeterminate
|
|
+ by a prior call to realloc(). */
|
|
+ DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
+#endif
|
|
/* realloc (p, 0) frees p (C89) and returns NULL (glibc). */
|
|
p = realloc (p, 0);
|
|
+#if __GNUC_PREREQ (12, 0)
|
|
+ DIAG_POP_NEEDS_COMMENT;
|
|
+#endif
|
|
if (p != NULL)
|
|
merror ("realloc (p, 0) returned non-NULL.");
|
|
|
|
diff --git a/support/tst-support-open-dev-null-range.c b/support/tst-support-open-dev-null-range.c
|
|
index 8e29def1ce780629..80c97e51586bf6ce 100644
|
|
--- a/support/tst-support-open-dev-null-range.c
|
|
+++ b/support/tst-support-open-dev-null-range.c
|
|
@@ -39,10 +39,11 @@ check_path (int fd)
|
|
char file_path[PATH_MAX];
|
|
ssize_t file_path_length
|
|
= readlink (proc_fd_path, file_path, sizeof (file_path));
|
|
- free (proc_fd_path);
|
|
if (file_path_length < 0)
|
|
FAIL_EXIT1 ("readlink (%s, %p, %zu)", proc_fd_path, file_path,
|
|
sizeof (file_path));
|
|
+
|
|
+ free (proc_fd_path);
|
|
file_path[file_path_length] = '\0';
|
|
TEST_COMPARE_STRING (file_path, "/dev/null");
|
|
}
|