libvirt/SOURCES/libvirt-qemu-fix-up-permissions-for-pre-created-UNIX-sockets.patch
2021-09-10 11:57:18 +00:00

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From 863827760fc7550b9b454fadf1377bea616fdcfd Mon Sep 17 00:00:00 2001
Message-Id: <863827760fc7550b9b454fadf1377bea616fdcfd@dist-git>
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Wed, 3 Oct 2018 16:58:18 +0200
Subject: [PATCH] qemu: fix up permissions for pre-created UNIX sockets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
My commit d6b8838 fixed the uid:gid for the pre-created UNIX sockets
but did not account for the different umask of libvirtd and QEMU.
Since commit 0e1a1a8c we set umask to '0002' for the QEMU process.
Manually tune-up the permissions to match what we would have gotten
if QEMU had created the socket.
https://bugzilla.redhat.com/show_bug.cgi?id=1633389
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
(cherry picked from commit 8ba65c4d95712b54362fd81c34bae99f51d45a0b)
Signed-off-by: Ján Tomko <jtomko@redhat.com>
RHEL 7.6.z: https://bugzilla.redhat.com/show_bug.cgi?id=1635228
RHEL 8.0: https://bugzilla.redhat.com/show_bug.cgi?id=1634775
Reviewed-by: Erik Skultety <eskultet@redhat.com>
---
src/qemu/qemu_command.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 5c71abab96..028f48310b 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -4933,6 +4933,12 @@ qemuOpenChrChardevUNIXSocket(const virDomainChrSourceDef *dev)
goto error;
}
+ /* We run QEMU with umask 0002. Compensate for the umask
+ * libvirtd might be running under to get the same permission
+ * QEMU would have. */
+ if (virFileUpdatePerm(dev->data.nix.path, 0002, 0664) < 0)
+ goto error;
+
return fd;
error:
--
2.19.1