From: Christophe JAILLET christophe.jaillet@wanadoo.fr
stable inclusion from stable-v5.10.210 commit ae6769ba51417c1c86fb645812d5bff455eee802 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q99M CVE: CVE-2024-35833
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 3aa58cb51318e329d203857f7a191678e60bb714 ]
This dma_alloc_coherent() is undone neither in the remove function, nor in the error handling path of fsl_qdma_probe().
Switch to the managed version to fix both issues.
Fixes: b092529e0aa0 ("dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/7f66aa14f59d32b13672dde28602b47deb294e1f.170462151... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Ze Zuo zuoze1@huawei.com --- drivers/dma/fsl-qdma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c index a59d0e743af2..bc0830de08b4 100644 --- a/drivers/dma/fsl-qdma.c +++ b/drivers/dma/fsl-qdma.c @@ -514,11 +514,11 @@ static struct fsl_qdma_queue queue_temp = queue_head + i + (j * queue_num);
queue_temp->cq = - dma_alloc_coherent(&pdev->dev, - sizeof(struct fsl_qdma_format) * - queue_size[i], - &queue_temp->bus_addr, - GFP_KERNEL); + dmam_alloc_coherent(&pdev->dev, + sizeof(struct fsl_qdma_format) * + queue_size[i], + &queue_temp->bus_addr, + GFP_KERNEL); if (!queue_temp->cq) return NULL; queue_temp->block_base = fsl_qdma->block_base +