diff options
| author | jsg@openbsd.org <jsg@openbsd.org> | 2020-02-26 13:40:09 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2020-02-28 12:26:28 +1100 |
| commit | d5ba1c03278eb079438bb038266d80d7477d49cb (patch) | |
| tree | 6d8dd2d802af796bcb7c9d6d018196a448bb9ff6 /ssh-ed25519.c | |
| parent | 9e3220b585c5be19a7431ea4ff8884c137b3a81c (diff) | |
| download | openssh-git-d5ba1c03278eb079438bb038266d80d7477d49cb.tar.gz | |
upstream: change explicit_bzero();free() to freezero()
While freezero() returns early if the pointer is NULL the tests for
NULL in callers are left to avoid warnings about passing an
uninitialised size argument across a function boundry.
ok deraadt@ djm@
OpenBSD-Commit-ID: 2660fa334fcc7cd05ec74dd99cb036f9ade6384a
Diffstat (limited to 'ssh-ed25519.c')
| -rw-r--r-- | ssh-ed25519.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/ssh-ed25519.c b/ssh-ed25519.c index 5163e029..7dee8270 100644 --- a/ssh-ed25519.c +++ b/ssh-ed25519.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-ed25519.c,v 1.7 2016/04/21 06:08:02 djm Exp $ */ +/* $OpenBSD: ssh-ed25519.c,v 1.8 2020/02/26 13:40:09 jsg Exp $ */ /* * Copyright (c) 2013 Markus Friedl <markus@openbsd.org> * @@ -83,10 +83,8 @@ ssh_ed25519_sign(const struct sshkey *key, u_char **sigp, size_t *lenp, r = 0; out: sshbuf_free(b); - if (sig != NULL) { - explicit_bzero(sig, slen); - free(sig); - } + if (sig != NULL) + freezero(sig, slen); return r; } @@ -153,14 +151,10 @@ ssh_ed25519_verify(const struct sshkey *key, /* success */ r = 0; out: - if (sm != NULL) { - explicit_bzero(sm, smlen); - free(sm); - } - if (m != NULL) { - explicit_bzero(m, smlen); /* NB mlen may be invalid if r != 0 */ - free(m); - } + if (sm != NULL) + freezero(sm, smlen); + if (m != NULL) + freezero(m, smlen); /* NB mlen may be invalid if r != 0 */ sshbuf_free(b); free(ktype); return r; |