MIRRORS/meta-virtualization
1
0
Fork 0
mirror of git://git.yoctoproject.org/meta-virtualization.git synced 2025-07-19 20:59:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

libvirt: CVE-2023-2700 Memory leak in virPCIVirtualFunctionList cleanup

Browse Source 
Upstream-Status: Backport from 6425a311b8

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This commit is contained in:
Hitendra Prajapati 2023-05-31 12:29:23 +05:30 committed by Bruce Ashfield
parent 9d056f957b
commit b3b3dbc675
2 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
recipes-extended/libvirt/libvirt/CVE-2023-2700.patch Normal file
View File

@ -0,0 +1,54 @@
From 6425a311b8ad19d6f9c0b315bf1d722551ea3585 Mon Sep 17 00:00:00 2001
From: Tim Shearer <TShearer@adva.com>
Date: Mon, 1 May 2023 13:15:48 +0000
Subject: [PATCH] virpci: Resolve leak in virPCIVirtualFunctionList cleanup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Repeatedly querying an SR-IOV PCI device's capabilities exposes a
memory leak caused by a failure to free the virPCIVirtualFunction
array within the parent struct's g_autoptr cleanup.
Valgrind output after getting a single interface's XML description
1000 times:
==325982== 256,000 bytes in 1,000 blocks are definitely lost in loss record 2,634 of 2,635
==325982== at 0x4C3C096: realloc (vg_replace_malloc.c:1437)
==325982== by 0x59D952D: g_realloc (in /usr/lib64/libglib-2.0.so.0.5600.4)
==325982== by 0x4EE1F52: virReallocN (viralloc.c:52)
==325982== by 0x4EE1FB7: virExpandN (viralloc.c:78)
==325982== by 0x4EE219A: virInsertElementInternal (viralloc.c:183)
==325982== by 0x4EE23B2: virAppendElement (viralloc.c:288)
==325982== by 0x4F65D85: virPCIGetVirtualFunctionsFull (virpci.c:2389)
==325982== by 0x4F65753: virPCIGetVirtualFunctions (virpci.c:2256)
==325982== by 0x505CB75: virNodeDeviceGetPCISRIOVCaps (node_device_conf.c:2969)
==325982== by 0x505D181: virNodeDeviceGetPCIDynamicCaps (node_device_conf.c:3099)
==325982== by 0x505BC4E: virNodeDeviceUpdateCaps (node_device_conf.c:2677)
==325982== by 0x260FCBB2: nodeDeviceGetXMLDesc (node_device_driver.c:355)
Signed-off-by: Tim Shearer <tshearer@adva.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upstream-Status: Backport [https://gitlab.com/libvirt/libvirt/-/commit/6425a311b8ad19d6f9c0b315bf1d722551ea3585]
CVE: CVE-2023-2700
Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
---
src/util/virpci.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/util/virpci.c b/src/util/virpci.c
index d141fde..1516682 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -2254,6 +2254,7 @@ virPCIVirtualFunctionListFree(virPCIVirtualFunctionList *list)
g_free(list->functions[i].ifname);
}
+ g_free(list->functions);
g_free(list);
}
--
2.25.1

1
recipes-extended/libvirt/libvirt_8.1.0.bb
View File

@ -29,6 +29,7 @@ SRC_URI = "http://libvirt.org/sources/libvirt-${PV}.tar.xz;name=libvirt \
file://hook_support.py \
file://gnutls-helper.py \
file://0001-qemu-segmentation-fault-in-virtqemud-executing-qemuD.patch \
file://CVE-2023-2700.patch \
"
SRC_URI[libvirt.sha256sum] = "3c6c43becffeb34a3f397c616206aa69a893ff8bf5e8208393c84e8e75352934"