diff options
Diffstat (limited to 'crypto/bn/bn_mont.c')
| -rw-r--r-- | crypto/bn/bn_mont.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index 934c55850a..b6c4c06bc5 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c @@ -430,7 +430,8 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock, { BN_MONT_CTX *ret; - CRYPTO_THREAD_read_lock(lock); + if (!CRYPTO_THREAD_read_lock(lock)) + return NULL; ret = *pmont; CRYPTO_THREAD_unlock(lock); if (ret) @@ -453,7 +454,11 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock, } /* The locked compare-and-set, after the local work is done. */ - CRYPTO_THREAD_write_lock(lock); + if (!CRYPTO_THREAD_write_lock(lock)) { + BN_MONT_CTX_free(ret); + return NULL; + } + if (*pmont) { BN_MONT_CTX_free(ret); ret = *pmont; |