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dma-buf: Fix memory leak in sync_file_merge()
commit6645d42d79
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>
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@ -221,7 +221,7 @@ static struct sync_file *sync_file_merge(const char *name, struct sync_file *a,
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a_fences = get_fences(a, &a_num_fences);
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b_fences = get_fences(b, &b_num_fences);
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if (a_num_fences > INT_MAX - b_num_fences)
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return NULL;
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goto err;
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num_fences = a_num_fences + b_num_fences;
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