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Commit 08d67499 authored by Cong Wang's avatar Cong Wang Committed by Greg Kroah-Hartman
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dma-buf: free dmabuf->name in dma_buf_release() 



commit d1f37226431f5d9657aa144a40f2383adbcf27e1 upstream.

dma-buf name can be set via DMA_BUF_SET_NAME ioctl, but once set
it never gets freed.

Free it in dma_buf_release().

Fixes: bb2bb903 ("dma-buf: add DMA_BUF_SET_NAME ioctls")
Reported-by: default avatar <syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Chenbo Feng <fengc@google.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
Acked-by: default avatarChenbo Feng <fengc@google.com>
Signed-off-by: default avatarSumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191227063204.5813-1-xiyou.wangcong@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 709c6990

drivers/dma-buf/dma-buf.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

}