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[v2,1/3] net/colo: fix memory double free error

Message ID 1487735198-127300-2-git-send-email-zhang.zhanghailiang@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

Zhanghailiang Feb. 22, 2017, 3:46 a.m. UTC
The 'primary_list' and 'secondary_list' members of struct Connection
is not allocated through dynamically g_queue_new(), but we free it by using
g_queue_free(), which will lead to a double-free bug.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
---
 net/colo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Zhang Chen Feb. 22, 2017, 8:39 a.m. UTC | #1
On 02/22/2017 11:46 AM, zhanghailiang wrote:
> The 'primary_list' and 'secondary_list' members of struct Connection
> is not allocated through dynamically g_queue_new(), but we free it by using
> g_queue_free(), which will lead to a double-free bug.
>
> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>

Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>

> ---
>   net/colo.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/net/colo.c b/net/colo.c
> index 6a6eacd..8cc166b 100644
> --- a/net/colo.c
> +++ b/net/colo.c
> @@ -147,9 +147,9 @@ void connection_destroy(void *opaque)
>       Connection *conn = opaque;
>   
>       g_queue_foreach(&conn->primary_list, packet_destroy, NULL);
> -    g_queue_free(&conn->primary_list);
> +    g_queue_clear(&conn->primary_list);
>       g_queue_foreach(&conn->secondary_list, packet_destroy, NULL);
> -    g_queue_free(&conn->secondary_list);
> +    g_queue_clear(&conn->secondary_list);
>       g_slice_free(Connection, conn);
>   }
>
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Patch

diff --git a/net/colo.c b/net/colo.c
index 6a6eacd..8cc166b 100644
--- a/net/colo.c
+++ b/net/colo.c
@@ -147,9 +147,9 @@  void connection_destroy(void *opaque)
     Connection *conn = opaque;
 
     g_queue_foreach(&conn->primary_list, packet_destroy, NULL);
-    g_queue_free(&conn->primary_list);
+    g_queue_clear(&conn->primary_list);
     g_queue_foreach(&conn->secondary_list, packet_destroy, NULL);
-    g_queue_free(&conn->secondary_list);
+    g_queue_clear(&conn->secondary_list);
     g_slice_free(Connection, conn);
 }