Re: [PATCH] dma: stm32-mdma: Fix a possible null-pointer dereference in stm32_mdma_irq_handler()
From: Vinod Koul <vkoul@kernel.org>
Date: 2019-08-08 13:26:12
Also in:
dmaengine, lkml
On 29-07-19, 10:08, Jia-Ju Bai wrote:
In stm32_mdma_irq_handler(), chan is checked on line 1368.
When chan is NULL, it is still used on line 1369:
dev_err(chan2dev(chan), "MDMA channel not initialized\n");
Thus, a possible null-pointer dereference may occur.
To fix this bug, "dev_dbg(mdma2dev(dmadev), ...)" is used instead.Applied after changing subsystem name in patch title to dmaengine: ..., Also while fixing it helps to add Fixes tag, have added Thanks -- ~Vinod _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel