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dma-buf: Fix memory leak in sync_file_merge() 

commit 6645d42d79 upstream.

In the implementation of sync_file_merge() the allocated sync_file is
leaked if number of fences overflows. Release sync_file by goto err.

Fixes: a02b9dc90d ("dma-buf/sync_file: refactor fence storage in struct sync_file")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191122220957.30427-1-navid.emamdoost@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Navid Emamdoost 2019-11-22 16:09:55 -06:00 committed by Greg Kroah-Hartman
parent 6344beb640
commit c902404d50
1 changed files with 1 additions and 1 deletions
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drivers/dma-buf/sync_file.c
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@ -221,7 +221,7 @@ static struct sync_file *sync_file_merge(const char *name, struct sync_file *a,
a_fences = get_fences(a, &a_num_fences);
b_fences = get_fences(b, &b_num_fences);
if (a_num_fences > INT_MAX - b_num_fences)
return NULL;
goto err;
num_fences = a_num_fences + b_num_fences;