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-rw-r--r--apt-pkg/contrib/fileutl.cc7
1 files changed, 6 insertions, 1 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 3e592d94f..f6351b7b5 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -2168,6 +2168,12 @@ bool DropPrivileges() /*{{{*/
if(_config->FindB("Debug::NoDropPrivs", false) == true)
return true;
+ // empty setting disables DropPrivilidges - this also ensures
+ // backward compatibility, see bug #764506
+ const std::string toUser = _config->Find("APT::Sandbox::User");
+ if (toUser.empty())
+ return true;
+
#if __gnu_linux__
#if defined(PR_SET_NO_NEW_PRIVS) && ( PR_SET_NO_NEW_PRIVS != 38 )
#error "PR_SET_NO_NEW_PRIVS is defined, but with a different value than expected!"
@@ -2186,7 +2192,6 @@ bool DropPrivileges() /*{{{*/
if (old_uid != 0)
return true;
- const std::string toUser = _config->Find("APT::Sandbox::User", "_apt");
struct passwd *pw = getpwnam(toUser.c_str());
if (pw == NULL)
return _error->Error("No user %s, can not drop rights", toUser.c_str());