From 2b7afb2d4aadd4dfef0ef8d3aac0e1651c83e5bd Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Thu, 26 Dec 2019 22:32:04 -0800 Subject: [PATCH] UPSTREAM: dma-buf: free dmabuf->name in dma_buf_release() 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(). Change-Id: I64d3e894c252ab64505b246093bb82b85de7ac7d Fixes: bb2bb9030425 ("dma-buf: add DMA_BUF_SET_NAME ioctls") Reported-by: syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com Cc: Greg Hackmann Cc: Chenbo Feng Cc: Sumit Semwal Signed-off-by: Cong Wang Acked-by: Chenbo Feng Signed-off-by: Sumit Semwal Link: https://patchwork.freedesktop.org/patch/msgid/20191227063204.5813-1-xiyou.wangcong@gmail.com Signed-off-by: Tao Huang (cherry picked from commit d1f37226431f5d9657aa144a40f2383adbcf27e1) --- 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 f02dbe8d64cf..87dd2c5b4e20 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -144,6 +144,7 @@ static int dma_buf_release(struct inode *inode, struct file *file) reservation_object_fini(dmabuf->resv); module_put(dmabuf->owner); + kfree(dmabuf->name); kfree(dmabuf); return 0; }