From: Cong Wang <xiyou.wangcong@gmail.com>
To: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linaro-mm-sig@lists.linaro.org,
Cong Wang <xiyou.wangcong@gmail.com>,
syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com,
Chenbo Feng <fengc@google.com>,
Sumit Semwal <sumit.semwal@linaro.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH] dma-buf: free dmabuf->name in dma_buf_release()
Date: Tue, 25 Feb 2020 12:44:46 -0800 [thread overview]
Message-ID: <20200225204446.11378-1-xiyou.wangcong@gmail.com> (raw)
dma-buff name can be set via DMA_BUF_SET_NAME ioctl, but once set
it never gets freed.
Free it in dma_buf_release().
Fixes: bb2bb9030425 ("dma-buf: add DMA_BUF_SET_NAME ioctls")
Reported-by: syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com
Acked-by: Chenbo Feng <fengc@google.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
---
drivers/dma-buf/dma-buf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index d4097856c86b..c343c7c10b4c 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -108,6 +108,7 @@ static int dma_buf_release(struct inode *inode, struct file *file)
dma_resv_fini(dmabuf->resv);
module_put(dmabuf->owner);
+ kfree(dmabuf->name);
kfree(dmabuf);
return 0;
}
--
2.21.1
next reply other threads:[~2020-02-25 20:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-25 20:44 Cong Wang [this message]
2020-02-26 1:54 ` [PATCH] dma-buf: free dmabuf->name in dma_buf_release() Andrew Morton
2020-02-27 21:38 ` Cong Wang
2020-02-27 21:45 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2019-12-27 6:32 Cong Wang
2020-02-18 18:41 ` Chenbo Feng
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