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s4:sam: Don't use talloc_steal for msg attributes in authsam_make_user_info_dc()

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This is most likely not a problem for the current callers,
but that it is unexpected and will likely cause problems with future
changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14993
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Stefan Metzmacher 2022-02-25 07:40:17 +01:00
parent afc2103da0
commit f6fe86924c
1 changed files with 14 additions and 5 deletions
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19
source4/auth/sam.c
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@ -454,12 +454,15 @@ _PUBLIC_ NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx,
user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
info->account_name = talloc_steal(info,
ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL));
str = ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL);
info->account_name = talloc_strdup(info, str);
if (info->account_name == NULL) {
TALLOC_FREE(user_info_dc);
return NT_STATUS_NO_MEMORY;
}
info->user_principal_name = talloc_steal(info,
ldb_msg_find_attr_as_string(msg, "userPrincipalName", NULL));
if (info->user_principal_name == NULL && dns_domain_name != NULL) {
str = ldb_msg_find_attr_as_string(msg, "userPrincipalName", NULL);
if (str == NULL && dns_domain_name != NULL) {
info->user_principal_name = talloc_asprintf(info, "%s@%s",
info->account_name,
dns_domain_name);
@ -468,6 +471,12 @@ _PUBLIC_ NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx,
return NT_STATUS_NO_MEMORY;
}
info->user_principal_constructed = true;
} else if (str != NULL) {
info->user_principal_name = talloc_strdup(info, str);
if (info->user_principal_name == NULL) {
TALLOC_FREE(user_info_dc);
return NT_STATUS_NO_MEMORY;
}
}
info->domain_name = talloc_strdup(info, domain_name);