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-rw-r--r--source3/passdb/lookup_sid.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/source3/passdb/lookup_sid.c b/source3/passdb/lookup_sid.c
index debd67b136..a7175b9647 100644
--- a/source3/passdb/lookup_sid.c
+++ b/source3/passdb/lookup_sid.c
@@ -1012,8 +1012,9 @@ static bool fetch_sid_from_uid_cache(DOM_SID *psid, uid_t uid)
return false;
}
- SMB_ASSERT(cache_value.length == sizeof(*psid));
- memcpy(psid, cache_value.data, sizeof(*psid));
+ memcpy(psid, cache_value.data, MIN(sizeof(*psid), cache_value.length));
+ SMB_ASSERT(cache_value.length >= offsetof(struct dom_sid, id_auth));
+ SMB_ASSERT(cache_value.length == ndr_size_dom_sid(psid, 0));
return true;
}
@@ -1066,8 +1067,9 @@ static bool fetch_sid_from_gid_cache(DOM_SID *psid, gid_t gid)
return false;
}
- SMB_ASSERT(cache_value.length == sizeof(*psid));
- memcpy(psid, cache_value.data, sizeof(*psid));
+ memcpy(psid, cache_value.data, MIN(sizeof(*psid), cache_value.length));
+ SMB_ASSERT(cache_value.length >= offsetof(struct dom_sid, id_auth));
+ SMB_ASSERT(cache_value.length == ndr_size_dom_sid(psid, 0));
return true;
}