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| author | NIIBE Yutaka <gniibe@fsij.org> | 2020-08-21 11:51:58 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2020-08-21 11:51:58 +0900 |
| commit | 65a2cd139e21250e6581a4f610015937e7b91451 (patch) | |
| tree | 31b3a7c58ccfa8de95e9ff85ea05b2e5b2d1e53c | |
| parent | 8d7b1d0a52bde173646e5b42b31d23593eabecf2 (diff) | |
| download | libgcrypt-65a2cd139e21250e6581a4f610015937e7b91451.tar.gz | |
ecc: Fix an error path.
* cipher/ecc-ecdh.c (_gcry_ecc_mul_point): Avoid null dereference on
error.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
| -rw-r--r-- | cipher/ecc-ecdh.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/cipher/ecc-ecdh.c b/cipher/ecc-ecdh.c index 615b108d..39458788 100644 --- a/cipher/ecc-ecdh.c +++ b/cipher/ecc-ecdh.c @@ -112,8 +112,11 @@ _gcry_ecc_mul_point (int algo, unsigned char *result, buf = _gcry_mpi_get_buffer (x, nbytes, &len, NULL); if (!buf) err = gpg_error_from_syserror (); - memcpy (result, buf, nbytes); - xfree (buf); + else + { + memcpy (result, buf, nbytes); + xfree (buf); + } leave: _gcry_mpi_release (x); |