From 6645d42d79d33e8a9fe262660a75d5f4556bbea9 Mon Sep 17 00:00:00 2001 From: Navid Emamdoost Date: Fri, 22 Nov 2019 16:09:55 -0600 Subject: [PATCH] dma-buf: Fix memory leak in sync_file_merge() 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: a02b9dc90d84 ("dma-buf/sync_file: refactor fence storage in struct sync_file") Signed-off-by: Navid Emamdoost Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20191122220957.30427-1-navid.emamdoost@gmail.com --- drivers/dma-buf/sync_file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index 25c5c07..91185db 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -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; -- 2.7.4