[PATCH net] rds: memory leak in __rds_conn_create()

Subsystems: networking [general], rds - reliable datagram sockets, the rest

STALE1754d

4 messages, 4 authors, 2021-12-14 · open the first message on its own page

[PATCH net] rds: memory leak in __rds_conn_create()

From: Hangyu Hua <hidden>
Date: 2021-12-14 10:47:16

__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.

Signed-off-by: Hangyu Hua <redacted>
---
 net/rds/connection.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/net/rds/connection.c b/net/rds/connection.c
index a3bc4b54d491..b4cc699c5fad 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -253,6 +253,7 @@ static struct rds_connection *__rds_conn_create(struct net *net,
 				 * should end up here, but if it
 				 * does, reset/destroy the connection.
 				 */
+				kfree(conn->c_path);
 				kmem_cache_free(rds_conn_slab, conn);
 				conn = ERR_PTR(-EOPNOTSUPP);
 				goto out;
-- 
2.25.1

Re: [PATCH net] rds: memory leak in __rds_conn_create()

From: Sharath Srinivasan <hidden>
Date: 2021-12-14 11:10:01

On 12/14/21 02:46, Hangyu Hua wrote:
__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.
Probably a good idea to include:

Fixes: aced3ce57cd3 ("RDS tcp loopback connection can hang")
Signed-off-by: Hangyu Hua <redacted>
With that,

Reviewed-by: Sharath Srinivasan <redacted>

Thanks,
Sharath
quoted hunk
---
  net/rds/connection.c | 1 +
  1 file changed, 1 insertion(+)
diff --git a/net/rds/connection.c b/net/rds/connection.c
index a3bc4b54d491..b4cc699c5fad 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -253,6 +253,7 @@ static struct rds_connection *__rds_conn_create(struct net *net,
  				 * should end up here, but if it
  				 * does, reset/destroy the connection.
  				 */
+				kfree(conn->c_path);
  				kmem_cache_free(rds_conn_slab, conn);
  				conn = ERR_PTR(-EOPNOTSUPP);
  				goto out;

Re: [PATCH net] rds: memory leak in __rds_conn_create()

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-12-14 13:00:16

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller [off-list ref]:

On Tue, 14 Dec 2021 18:46:59 +0800 you wrote:
__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.

Signed-off-by: Hangyu Hua <redacted>
---
 net/rds/connection.c | 1 +
 1 file changed, 1 insertion(+)
Here is the summary with links:
  - [net] rds: memory leak in __rds_conn_create()
    https://git.kernel.org/netdev/net/c/5f9562ebe710

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

Re: [PATCH net] rds: memory leak in __rds_conn_create()

From: Santosh Shilimkar <hidden>
Date: 2021-12-14 17:39:43

On Dec 14, 2021, at 2:46 AM, Hangyu Hua [off-list ref] wrote:

__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.

Signed-off-by: Hangyu Hua <redacted>
---
net/rds/connection.c | 1 +
1 file changed, 1 insertion(+)
Looks good to me. Thanks !!

Acked-by: Santosh Shilimkar <redacted>
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