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s4:password hash LDB module - check that password hashes are != NULL before copying them

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This commit is contained in:
Matthias Dieter Wallnöfer 2010-05-10 20:02:21 +02:00
parent 6276343ce1
commit fa87027592
1 changed files with 10 additions and 6 deletions
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16
source4/dsdb/samdb/ldb_modules/password_hash.c
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@ -1778,9 +1778,11 @@ static int setup_io(struct ph_context *ac,
return LDB_ERR_CONSTRAINT_VIOLATION;
}
io->n.nt_hash = talloc(io->ac, struct samr_Password);
memcpy(io->n.nt_hash->hash, quoted_utf16->data,
MIN(quoted_utf16->length, sizeof(io->n.nt_hash->hash)));
if (quoted_utf16 != NULL) {
io->n.nt_hash = talloc(io->ac, struct samr_Password);
memcpy(io->n.nt_hash->hash, quoted_utf16->data,
MIN(quoted_utf16->length, sizeof(io->n.nt_hash->hash)));
}
}
/* Checks and converts the previous "unicodePwd" attribute */
@ -1827,9 +1829,11 @@ static int setup_io(struct ph_context *ac,
return LDB_ERR_UNWILLING_TO_PERFORM;
}
io->og.nt_hash = talloc(io->ac, struct samr_Password);
memcpy(io->og.nt_hash->hash, old_quoted_utf16->data,
MIN(old_quoted_utf16->length, sizeof(io->og.nt_hash->hash)));
if (old_quoted_utf16 != NULL) {
io->og.nt_hash = talloc(io->ac, struct samr_Password);
memcpy(io->og.nt_hash->hash, old_quoted_utf16->data,
MIN(old_quoted_utf16->length, sizeof(io->og.nt_hash->hash)));
}
}
/* Handles the "dBCSPwd" attribute (LM hash) */