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libvirt-8.0.0-16.el8

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Jiri Denemark 2023-02-08 09:08:49 +01:00
parent 322ac1f5ea
commit c788668c6f
2 changed files with 62 additions and 1 deletions
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57
libvirt-qemu_namespace-Don-t-leak-memory-in-qemuDomainGetPreservedMounts.patch Normal file
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@ -0,0 +1,57 @@
From 77b0485ba92fe5f0520321385af8a7581c286df1 Mon Sep 17 00:00:00 2001
Message-Id: <77b0485ba92fe5f0520321385af8a7581c286df1@dist-git>
From: Michal Privoznik <mprivozn@redhat.com>
Date: Mon, 31 Oct 2022 15:38:13 +0100
Subject: [PATCH] qemu_namespace: Don't leak memory in
qemuDomainGetPreservedMounts()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The aim of qemuDomainGetPreservedMounts() is to get a list of
filesystems mounted under /dev and optionally generate a path for
each one where they are moved temporarily when building the
namespace. And the function tries to be a bit clever about it.
For instance, if /dev/shm mount point exists, there's no need to
consider /dev/shm/a nor /dev/shm/b as preserving just 'top level'
/dev/shm gives the same result. To achieve this, the function
iterates over the list of filesystem as returned by
virFileGetMountSubtree() and removes the nested ones. However, it
does so in a bit clumsy way: plain VIR_DELETE_ELEMENT() is used
without freeing the string itself. Therefore, if all three
aforementioned example paths appeared on the list, /dev/shm/a and
/dev/shm/b strings would be leaked.
And when I think about it more, there's no real need to shrink
the array down (realloc()). It's going to be free()-d when
returning from the function. Switch to
VIR_DELETE_ELEMENT_INPLACE() then.
Fixes: cdd9205dfffa3aaed935446a41f0d2dd1357c268
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
(cherry picked from commit bca7a53333ead7c1afd178728de74c2977cd4b5e)
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2166573
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
---
src/qemu/qemu_namespace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_namespace.c b/src/qemu/qemu_namespace.c
index 74ffd6fb90..2f50087c1d 100644
--- a/src/qemu/qemu_namespace.c
+++ b/src/qemu/qemu_namespace.c
@@ -160,7 +160,8 @@ qemuDomainGetPreservedMounts(virQEMUDriverConfig *cfg,
if (c && (*c == '/' || *c == '\0')) {
VIR_DEBUG("Dropping path %s because of %s", mounts[j], mounts[i]);
- VIR_DELETE_ELEMENT(mounts, j, nmounts);
+ VIR_FREE(mounts[j]);
+ VIR_DELETE_ELEMENT_INPLACE(mounts, j, nmounts);
} else {
j++;
}
--
2.39.1

6
libvirt.spec
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@ -210,7 +210,7 @@
Summary: Library providing a simple virtualization API
Name: libvirt
Version: 8.0.0
Release: 15%{?dist}%{?extra_release}
Release: 16%{?dist}%{?extra_release}
License: LGPLv2+
URL: https://libvirt.org/
@ -301,6 +301,7 @@ Patch78: libvirt-nodedev-add-optional-device-address-of-channel-device-to-css-de
Patch79: libvirt-nodedev-add-tests-for-optional-device-address-to-css-device.patch
Patch80: libvirt-nodedev-prevent-internal-error-on-dev_busid-parse.patch
Patch81: libvirt-rpc-Fix-memory-leak-of-fds.patch
Patch82: libvirt-qemu_namespace-Don-t-leak-memory-in-qemuDomainGetPreservedMounts.patch
Requires: libvirt-daemon = %{version}-%{release}
Requires: libvirt-daemon-config-network = %{version}-%{release}
@ -2180,6 +2181,9 @@ exit 0
%changelog
* Wed Feb 8 2023 Jiri Denemark <jdenemar@redhat.com> - 8.0.0-16
- qemu_namespace: Don't leak memory in qemuDomainGetPreservedMounts() (rhbz#2166573)
* Tue Jan 31 2023 Jiri Denemark <jdenemar@redhat.com> - 8.0.0-15
- nodedev: fix reported error msg in css cap XML parsing (rhbz#2165011)
- util: refactor virDomainDeviceCCWAddress into virccw.h (rhbz#2165011)