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From d8290207c5743110e8504c8b449839f4eb638af6 Mon Sep 17 00:00:00 2001
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Message-Id: <d8290207c5743110e8504c8b449839f4eb638af6.1383321465.git.jdenemar@redhat.com>
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From: "Daniel P. Berrange" <berrange@redhat.com>
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Date: Wed, 30 Oct 2013 17:01:54 +0000
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Subject: [PATCH] Don't allow remote driver daemon autostart when running
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 setuid
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For
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  https://bugzilla.redhat.com/show_bug.cgi?id=1015247
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We don't want setuid programs automatically spawning libvirtd,
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so disable any use of autostart when setuid.
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Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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(cherry picked from commit 171bb129115d49c567b643acaf20b363b124b8cf)
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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 src/remote/remote_driver.c | 15 +++++++++------
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 1 file changed, 9 insertions(+), 6 deletions(-)
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diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
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index b6b629c..7688bf6 100644
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--- a/src/remote/remote_driver.c
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+++ b/src/remote/remote_driver.c
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@@ -431,7 +431,7 @@ doRemoteOpen(virConnectPtr conn,
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         trans_tcp,
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     } transport;
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 #ifndef WIN32
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-    const char *daemonPath;
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+    const char *daemonPath = NULL;
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 #endif
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     /* We handle *ALL* URIs here. The caller has rejected any
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@@ -713,7 +713,8 @@ doRemoteOpen(virConnectPtr conn,
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             VIR_DEBUG("Proceeding with sockname %s", sockname);
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         }
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-        if (!(daemonPath = remoteFindDaemonPath())) {
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+        if ((flags & VIR_DRV_OPEN_REMOTE_AUTOSTART) &&
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+            !(daemonPath = remoteFindDaemonPath())) {
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             virReportError(VIR_ERR_INTERNAL_ERROR,
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                            _("Unable to locate libvirtd daemon in %s "
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                              "(to override, set $LIBVIRTD_PATH to the "
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@@ -997,8 +998,9 @@ remoteConnectOpen(virConnectPtr conn,
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         getuid() > 0) {
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         VIR_DEBUG("Auto-spawn user daemon instance");
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         rflags |= VIR_DRV_OPEN_REMOTE_USER;
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-        if (!autostart ||
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-            STRNEQ(autostart, "0"))
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+        if (!virIsSUID() &&
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+            (!autostart ||
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+             STRNEQ(autostart, "0")))
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             rflags |= VIR_DRV_OPEN_REMOTE_AUTOSTART;
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     }
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@@ -1014,8 +1016,9 @@ remoteConnectOpen(virConnectPtr conn,
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         if (getuid() > 0) {
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             VIR_DEBUG("Auto-spawn user daemon instance");
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             rflags |= VIR_DRV_OPEN_REMOTE_USER;
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-            if (!autostart ||
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-                STRNEQ(autostart, "0"))
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+            if (!virIsSUID() &&
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+                (!autostart ||
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+                 STRNEQ(autostart, "0")))
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                 rflags |= VIR_DRV_OPEN_REMOTE_AUTOSTART;
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         }
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 #endif
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-- 
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1.8.4.2
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