From 8cadb01d2c2f520a890d1bc78b45471f21b9b76d Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 9 Mar 2017 20:04:57 +0100 Subject: [PATCH] gpu: host1x: Fix potential out-of-bounds access The check for valid syncpoint IDs is off by one. While at it, rewrite the check to make it more easily understandable. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/syncpt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index 25c11a85050b..0ac026cdc30c 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -484,7 +484,7 @@ unsigned int host1x_syncpt_nb_mlocks(struct host1x *host) struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, unsigned int id) { - if (host->info->nb_pts < id) + if (id >= host->info->nb_pts) return NULL; return host->syncpt + id; -- 2.30.2