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authorRich Salz <rsalz@openssl.org>2017-05-31 12:14:55 -0400
committerRich Salz <rsalz@openssl.org>2017-05-31 14:10:05 -0400
commit73bc53708c386c1ea85941d345721e23dc61c05c (patch)
tree9332814c9af5d4653c8ae94587532bd037963c5e /crypto
parent4a8ab10dd205b0f8527f993e608ebe1b032768eb (diff)
Only release thread-local key if we created it.
Thanks to Jan Alexander Steffens for finding the bug and confirming the fix. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3592)
Diffstat (limited to 'crypto')
-rw-r--r--crypto/err/err.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/crypto/err/err.c b/crypto/err/err.c
index f866f2fdd0..c55f849590 100644
--- a/crypto/err/err.c
+++ b/crypto/err/err.c
@@ -122,6 +122,7 @@ static ERR_STRING_DATA ERR_str_reasons[] = {
#endif
static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT;
+static int set_err_thread_local;
static CRYPTO_THREAD_LOCAL err_thread_local;
static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT;
@@ -260,7 +261,8 @@ DEFINE_RUN_ONCE_STATIC(do_err_strings_init)
void err_cleanup(void)
{
- CRYPTO_THREAD_cleanup_local(&err_thread_local);
+ if (set_err_thread_local != 0)
+ CRYPTO_THREAD_cleanup_local(&err_thread_local);
CRYPTO_THREAD_lock_free(err_string_lock);
err_string_lock = NULL;
}
@@ -639,6 +641,7 @@ void ERR_remove_state(unsigned long pid)
DEFINE_RUN_ONCE_STATIC(err_do_init)
{
+ set_err_thread_local = 1;
return CRYPTO_THREAD_init_local(&err_thread_local, NULL);
}