diff options
Diffstat (limited to 'sysdeps/generic/tls-internal.c')
| -rw-r--r-- | sysdeps/generic/tls-internal.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sysdeps/generic/tls-internal.c b/sysdeps/generic/tls-internal.c index 898c20b61c..8a0f37d509 100644 --- a/sysdeps/generic/tls-internal.c +++ b/sysdeps/generic/tls-internal.c @@ -16,6 +16,24 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ +#include <stdlib/arc4random.h> +#include <string.h> #include <tls-internal.h> __thread struct tls_internal_t __tls_internal; + +void +__glibc_tls_internal_free (void) +{ + free (__tls_internal.strsignal_buf); + free (__tls_internal.strerror_l_buf); + + if (__tls_internal.rand_state != NULL) + { + /* Clear any lingering random state prior so if the thread stack is + cached it won't leak any data. */ + explicit_bzero (__tls_internal.rand_state, + sizeof (*__tls_internal.rand_state)); + free (__tls_internal.rand_state); + } +} |