[dpdk-dev] [PATCH] net/virtio: fix getline memory leakage

Min Hu (Connor) humin29 at huawei.com
Wed Apr 21 03:37:49 CEST 2021


From: Chengwen Feng <fengchengwen at huawei.com>

This patch fixes getline memory leakage when parsing dynamic major num.

Fixes: 7d62bf6f54ba ("net/virtio: introduce vhost-vDPA backend type")
Cc: stable at dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
Signed-off-by: Min Hu (Connor) <humin29 at huawei.com>
---
 drivers/net/virtio/virtio_user_ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 79bd31e..e85906e 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -360,7 +360,7 @@ vdpa_dynamic_major_num(void)
 {
 	FILE *fp;
 	char *line = NULL;
-	size_t size;
+	size_t size = 0;
 	char name[11];
 	bool found = false;
 	uint32_t num;
@@ -380,6 +380,7 @@ vdpa_dynamic_major_num(void)
 			break;
 		}
 	}
+	free(line);
 	fclose(fp);
 	return found ? num : UNNAMED_MAJOR;
 }
-- 
2.7.4



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