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[Qemu-devel] [PATCH 008/156] qom: Avoid leaking str and bool properties
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH 008/156] qom: Avoid leaking str and bool properties on failure |
Date: |
Tue, 8 Jul 2014 12:16:39 -0500 |
From: Stefan Hajnoczi <address@hidden>
When object_property_add_str() and object_property_add_bool() fail, they
leak their internal StringProperty and BoolProperty structs. Remember
to free the structs on error.
Luckily this is a low-impact memory leak since most QOM properties are
static qdev properties that will never take the error case.
object_property_add() only fails if the property name is already in use.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Cc: address@hidden
Signed-off-by: Andreas Färber <address@hidden>
(cherry picked from commit a01aedc8d32e6f5b08a4041b62be3c5fab7a3382)
Signed-off-by: Michael Roth <address@hidden>
---
qom/object.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/qom/object.c b/qom/object.c
index 21b5a0b..9156f91 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -1273,6 +1273,7 @@ void object_property_add_str(Object *obj, const char
*name,
void (*set)(Object *, const char *, Error **),
Error **errp)
{
+ Error *local_err = NULL;
StringProperty *prop = g_malloc0(sizeof(*prop));
prop->get = get;
@@ -1282,7 +1283,11 @@ void object_property_add_str(Object *obj, const char
*name,
get ? property_get_str : NULL,
set ? property_set_str : NULL,
property_release_str,
- prop, errp);
+ prop, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ g_free(prop);
+ }
}
typedef struct BoolProperty
@@ -1329,6 +1334,7 @@ void object_property_add_bool(Object *obj, const char
*name,
void (*set)(Object *, bool, Error **),
Error **errp)
{
+ Error *local_err = NULL;
BoolProperty *prop = g_malloc0(sizeof(*prop));
prop->get = get;
@@ -1338,7 +1344,11 @@ void object_property_add_bool(Object *obj, const char
*name,
get ? property_get_bool : NULL,
set ? property_set_bool : NULL,
property_release_bool,
- prop, errp);
+ prop, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ g_free(prop);
+ }
}
static char *qdev_get_type(Object *obj, Error **errp)
--
1.9.1
- [Qemu-devel] [PATCH 014/156] virtio-net: Do not filter VLANs without F_CTRL_VLAN, (continued)
- [Qemu-devel] [PATCH 014/156] virtio-net: Do not filter VLANs without F_CTRL_VLAN, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 101/156] qcow2: Fix new L1 table size check (CVE-2014-0143), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 103/156] dmg: prevent out-of-bounds array access on terminator, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 082/156] vpc/vhd: add bounds check for max_table_entries and block_size (CVE-2014-0144), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 152/156] qapi: zero-initialize all QMP command parameters, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 023/156] block: Use BDRV_O_NO_BACKING where appropriate, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 140/156] scsi-disk: fix bug in scsi_block_new_request() introduced by commit 137745c, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 067/156] migration: remove duplicate code, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 092/156] qcow2: Validate active L1 table offset and size (CVE-2014-0144), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 009/156] tap: avoid deadlocking rx, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 008/156] qom: Avoid leaking str and bool properties on failure,
Michael Roth <=
- [Qemu-devel] [PATCH 011/156] configure: Don't use __int128_t for clang versions before 3.2, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 114/156] parallels: Fix catalog size integer overflow (CVE-2014-0143), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 015/156] hw/net/stellaris_enet: Restructure tx_fifo code to avoid buffer overrun, Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 119/156] qcow1: Validate image size (CVE-2014-0223), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 118/156] qcow1: Validate L2 table size (CVE-2014-0222), Michael Roth, 2014/07/08
- [Qemu-devel] [PATCH 090/156] qcow2: Validate refcount table offset, Michael Roth, 2014/07/09
- [Qemu-devel] [PATCH 138/156] qga: Fix handle fd leak in acquire_privilege(), Michael Roth, 2014/07/09
- [Qemu-devel] [PATCH 121/156] virtio-scsi: Plug memory leak on virtio_scsi_push_event() error path, Michael Roth, 2014/07/09
- [Qemu-devel] [PATCH 044/156] vmstate: fix buffer overflow in target-arm/machine.c, Michael Roth, 2014/07/09
- [Qemu-devel] [PATCH 112/156] qcow2: Fix L1 allocation size in qcow2_snapshot_load_tmp() (CVE-2014-0145), Michael Roth, 2014/07/09