From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794434063; b=efwrTfcUqe3RmRMmdU3u2emCROBghsW6QtUtqQ8ogGLQlwv4McpgNW9FcFYbH9zp6Zrj pJgZmIkTW7ku/GuSqdDibE9MJNvkEi2IUp2YuLrkBc1Xy/7XxrMD8ZyMAuG4lghrL0nHd oUmYo5ehp7z1SklS0FIiHa1Lymg4DgWH+1ICSOSPrcrnALnjf+97OOvm5afIJiSSE+3FX xCA+mro/olTSEBl04iKBVxAmLQRTapHYRINHQp4xuj65jqrbdwHHawtH/D/qLLE3BVVfu PGyViEB2FmLdZ2KBNDYAaDn1RxcBK+hp2XEBgYUtddv3zrEuPaDVLPw7knQCm8cazfA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794434063; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=ddmwTTE4OrnrhabR1xw8Jv7Wv16fLWDKLghb2wkDmiM=; b=WKgdyVfWg9/DXz6YvlYgB/0is876ja2GS6v8FdGod7Sd3o6WQ0z5qIhAyrVpcZiUVVsh G2gvl2JIPa25/hDGD2J94YaFnFi4FH/ItHElqZoeTwMR76Ivy1ZXfyXZiHAsIDtl/ErLz bbKEF4h6VHI/e9QAFKUcbwszYCYOx5OFvWVHpbOkPpG+p0rRtemjuaVDR+tcNXbAROVX9 2W/DKVIqKkNL+sHzU8xq6HJQKv43nhR8gSHMqRkXwV+U+z3Ti70+EMtCUrdd+M0P8glx3 WnVvE9il+psIhF4jtAGyLxlQBCzJKan0FNUsFKEtNVdmLgZT1bartJR5jzzL1w14IQg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=YTlG7oHo; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F78B606A332; Wed, 11 Nov 2026 21:54:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=YTlG7oHo Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA87E1F00ACC; Wed, 11 Nov 2026 21:54:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794434063; bh=ddmwTTE4OrnrhabR1xw8Jv7Wv16fLWDKLghb2wkDmiM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=YTlG7oHoXHKdOz+rtjvkx5K6EqiBq6f+zu8H6ytM0ieezyYwzEg504QkpCWzigi1+ dT2vl+rMbGEMWIMAO+LcOSxfra4Bemf1L8LpeIfX3NBnLAJm4DtdJKgd+8SLqBFNcW JjSE16zMoYqlv/KU9XN3GNaEv+z4DCnBlB2LxfIcrIPYjXC9zndvpJdXZYB+UqTWX+ MMnqn/pqWR1s+/cUkDqQgUtegR93i0CUg+HzQ/+13cML8RO0/H6+AgFI36KOSdLddC 0RLpgQiSwzGTwiY0eWuXO5T3MJF9gvBHcGWp2XGOgoZBvpnPjjSQa7/xXIGfuwqN/5 wxpbV/ge17hKA== From: Lee Jones To: lee@kernel.org, Basavaraj Natikar , Vinod Koul , Frank Li , Sanjay R Mehta , Gary R Hook , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Subject: [PATCH 03/10] dmaengine: ptdma: Unmap descriptor in pt_do_cleanup() Date: Wed, 11 Nov 2026 21:52:41 +0000 Message-ID: <20261111215349.1983909-4-lee@kernel.org> X-Mailer: git-send-email 2.56.0.567.gdb80ae8cd5-goog In-Reply-To: <20261111215349.1983909-1-lee@kernel.org> References: <20261111215349.1983909-1-lee@kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When descriptors are freed on abort via vchan_dma_desc_free_list(), pt_do_cleanup() frees the descriptor without calling dma_descriptor_unmap(), leaking any attached dmaengine_unmap_data and DMA mappings. Call dma_descriptor_unmap(&vd->tx) in pt_do_cleanup() before freeing the descriptor. Fixes: b0b4a6b10577 ("dmaengine: ptdma: register PTDMA controller as a DMA resource") Closes: https://sashiko.dev/#/bug/linux-58b8113b-167a-4398-9be2-c2f3cbf73358 Cc: stable@vger.kernel.org Signed-off-by: Lee Jones --- drivers/dma/amd/ptdma/ptdma-dmaengine.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/amd/ptdma/ptdma-dmaengine.c b/drivers/dma/amd/ptdma/ptdma-dmaengine.c index 22e7b3ae26a1..405d3d3b7f8a 100644 --- a/drivers/dma/amd/ptdma/ptdma-dmaengine.c +++ b/drivers/dma/amd/ptdma/ptdma-dmaengine.c @@ -91,6 +91,7 @@ static void pt_do_cleanup(struct virt_dma_desc *vd) struct pt_dma_desc *desc = to_pt_desc(vd); struct pt_device *pt = desc->pt; + dma_descriptor_unmap(&vd->tx); kmem_cache_free(pt->dma_desc_cache, desc); } -- 2.56.0.567.gdb80ae8cd5-goog