From 6963b0641d446209018f0fdc6cd773c92b3f4612 Mon Sep 17 00:00:00 2001 From: Chengwen Feng 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 --- 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