forked from rpms/libvirt
57 lines
2.2 KiB
Diff
57 lines
2.2 KiB
Diff
From 1f927f75a8a7d01cabdd88e595b67044098c2890 Mon Sep 17 00:00:00 2001
|
|
Message-Id: <1f927f75a8a7d01cabdd88e595b67044098c2890@dist-git>
|
|
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>
|
|
(cherry picked from commit 6425a311b8ad19d6f9c0b315bf1d722551ea3585)
|
|
|
|
https://bugzilla.redhat.com/show_bug.cgi?id=2208596
|
|
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2023-2700
|
|
|
|
Signed-off-by: Ján Tomko <jtomko@redhat.com>
|
|
---
|
|
src/util/virpci.c | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
diff --git a/src/util/virpci.c b/src/util/virpci.c
|
|
index 7800966963..a44f70fb08 100644
|
|
--- a/src/util/virpci.c
|
|
+++ b/src/util/virpci.c
|
|
@@ -2253,6 +2253,7 @@ virPCIVirtualFunctionListFree(virPCIVirtualFunctionList *list)
|
|
g_free(list->functions[i].ifname);
|
|
}
|
|
|
|
+ g_free(list->functions);
|
|
g_free(list);
|
|
}
|
|
|
|
--
|
|
2.40.1
|