36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
|
From 6963b0641d446209018f0fdc6cd773c92b3f4612 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Chengwen Feng <fengchengwen@huawei.com>
|
||
|
|
Date: Sat, 12 Oct 2024 17:17:34 +0800
|
||
|
|
Subject: [PATCH] dmadev: fix potential null pointer access
|
||
|
|
|
||
|
|
[ upstream commit e5389d427ec43ab805d0a1caed89b63656fd7fde ]
|
||
|
|
|
||
|
|
When rte_dma_vchan_status(dev_id, vchan, NULL) is called, a null pointer
|
||
|
|
access is triggered.
|
||
|
|
This patch adds the null pointer checker.
|
||
|
|
|
||
|
|
Fixes: 5e0f85912754 ("dmadev: add channel status check for testing use")
|
||
|
|
Cc: stable@dpdk.org
|
||
|
|
|
||
|
|
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
|
||
|
|
---
|
||
|
|
lib/dmadev/rte_dmadev.c | 2 +-
|
||
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
||
|
|
|
||
|
|
diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c
|
||
|
|
index 7729519..8a010c4 100644
|
||
|
|
--- a/lib/dmadev/rte_dmadev.c
|
||
|
|
+++ b/lib/dmadev/rte_dmadev.c
|
||
|
|
@@ -722,7 +722,7 @@ rte_dma_vchan_status(int16_t dev_id, uint16_t vchan, enum rte_dma_vchan_status *
|
||
|
|
{
|
||
|
|
struct rte_dma_dev *dev = &rte_dma_devices[dev_id];
|
||
|
|
|
||
|
|
- if (!rte_dma_is_valid(dev_id))
|
||
|
|
+ if (!rte_dma_is_valid(dev_id) || status == NULL)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
if (vchan >= dev->data->dev_conf.nb_vchans) {
|
||
|
|
--
|
||
|
|
2.33.0
|
||
|
|
|