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eapol: Convert memsets to explicit_bzero

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We were wiping out certain secrets via memset.  Convert them to
explicit_bzero just in case the compiler decides to optimize them out.
This commit is contained in:
Denis Kenzior 2019-03-19 11:25:22 -05:00
parent f76e10799f
commit 570abd7bfb
1 changed files with 3 additions and 3 deletions
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6
src/eapol.c
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@ -258,7 +258,7 @@ uint8_t *eapol_decrypt_key_data(enum ie_rsn_akm_suite akm, const uint8_t *kek,
memcpy(key + 16, kek, 16);
ret = arc4_skip(key, 32, 256, key_data, key_data_len, buf);
memset(key, 0, sizeof(key));
explicit_bzero(key, sizeof(key));
if (!ret)
goto error;
@ -795,9 +795,9 @@ static void eapol_sm_destroy(void *value)
eapol_frame_watch_remove(sm->watch_id);
sm->installed_gtk_len = 0;
memset(sm->installed_gtk, 0, sizeof(sm->installed_gtk));
explicit_bzero(sm->installed_gtk, sizeof(sm->installed_gtk));
sm->installed_igtk_len = 0;
memset(sm->installed_igtk, 0, sizeof(sm->installed_igtk));
explicit_bzero(sm->installed_igtk, sizeof(sm->installed_igtk));
l_free(sm);