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eap-mschapv2: Check hexstring parses in load_settings

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load_settings is assumed to do minimum error checking to avoid crashing
on invalid input.
This commit is contained in:
Andrew Zaborowski 2019-03-21 03:54:15 +01:00 committed by Denis Kenzior
parent 94043d6bcb
commit 970ce050fe
1 changed files with 4 additions and 1 deletions
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5
src/eap-mschapv2.c
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@ -539,7 +539,10 @@ static bool eap_mschapv2_load_settings(struct eap_state *eap,
goto error; goto error;
tmp = l_util_from_hexstring(hash_str, &len); tmp = l_util_from_hexstring(hash_str, &len);
memcpy(state->password_hash, tmp, 16); if (!tmp)
goto error;
memcpy(state->password_hash, tmp, len);
explicit_bzero(tmp, len); explicit_bzero(tmp, len);
l_free(tmp); l_free(tmp);
} }