linux-kernel - [PATCH 2/3] ASoC: amd: acp3x-pcm-dma: free runtime private data on closing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250530164425.119102-3-pchelkin@ispras.ru>
Date: Fri, 30 May 2025 19:44:15 +0300
From: Fedor Pchelkin <pchelkin@...ras.ru>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Takashi Iwai <tiwai@...e.com>
Cc: Fedor Pchelkin <pchelkin@...ras.ru>,
	Jaroslav Kysela <perex@...ex.cz>,
	Vijendar Mukunda <Vijendar.Mukunda@....com>,
	Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@....com>,
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	lvc-project@...uxtesting.org,
	stable@...r.kernel.org
Subject: [PATCH 2/3] ASoC: amd: acp3x-pcm-dma: free runtime private data on closing

Dynamic memory referenced by runtime->private_data pointer is allocated in
acp3x_dma_open() and needs to be freed in the corresponding ->close()
callback.

Found by Linux Verification Center (linuxtesting.org).

Fixes: c9fe7db6e884 ("ASoC: amd: Refactoring of DAI from DMA driver")
Cc: stable@...r.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@...ras.ru>
---
 sound/soc/amd/raven/acp3x-pcm-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index bb9ed52d744d..90559c8304bc 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -353,7 +353,7 @@ static int acp3x_dma_close(struct snd_soc_component *component,
 			adata->i2ssp_capture_stream = NULL;
 		}
 	}
-
+	kfree(ins);
 	return 0;
 }
 
-- 
2.49.0