diff mbox series

Fix duplicate free for GATT service includes

Message ID 20201120002215.3946089-1-pavelm@google.com
State Superseded
Headers show
Series Fix duplicate free for GATT service includes | expand

Commit Message

Pavel Maltsev Nov. 20, 2020, 12:22 a.m. UTC 
Objects in the service->includes queue are obtained via
dbus_message_iter_get_basic call and according to the
contract for the value is that it is returned by the reference
and should not be freed thus we should make a copy.

This will fix the issue when the GATT service app is disconnected
(reproduced with gatt-service included in bluez), bluetoothd is crashing:

src/gatt-database.c:gatt_db_service_removed() Local GATT service removed
src/adapter.c:adapter_service_remove() /org/bluez/hci0
src/adapter.c:remove_uuid() sending remove uuid command for index 0
src/gatt-database.c:proxy_removed_cb() Proxy removed - removing service: /serv1
munmap_chunk(): invalid pointer
---
 src/gatt-database.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

bluez.test.bot@gmail.com Nov. 20, 2020, 1 a.m. UTC | #1 
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=388009

---Test result---

##############################
Test: CheckPatch - PASS

##############################
Test: CheckGitLint - PASS

##############################
Test: CheckBuild - PASS

##############################
Test: MakeCheck - PASS



---
Regards,
Linux Bluetooth
diff mbox series

Patch

diff --git a/src/gatt-database.c b/src/gatt-database.c
index 6694a0174..90cc4bade 100644
--- a/src/gatt-database.c
+++ b/src/gatt-database.c
@@ -1999,6 +1999,7 @@  static bool parse_includes(GDBusProxy *proxy, struct external_service *service)
 	DBusMessageIter iter;
 	DBusMessageIter array;
 	char *obj;
+	char *includes;
 	int type;
 
 	/* Includes property is optional */
@@ -2017,7 +2018,11 @@  static bool parse_includes(GDBusProxy *proxy, struct external_service *service)
 
 		dbus_message_iter_get_basic(&array, &obj);
 
-		if (!queue_push_tail(service->includes, obj)) {
+		includes = g_strdup(obj);
+		if (!includes)
+			return false;
+
+		if (!queue_push_tail(service->includes, includes)) {
 			error("Failed to add Includes path in queue\n");
 			return false;
 		}