6.1-stable review patch. If anyone has any objections, please let me know.
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From: Mikko Perttunen mperttunen@nvidia.com
[ Upstream commit 3868ff006b572cf501a3327832d36c64a9eca86a ]
UBSAN reports an invalid load for bool, as the iosys_map is read later without being initialized. Zero-initialize it to avoid this.
Reported-by: Ashish Mhetre amhetre@nvidia.com Signed-off-by: Mikko Perttunen mperttunen@nvidia.com Signed-off-by: Thierry Reding treding@nvidia.com Link: https://patchwork.freedesktop.org/patch/msgid/20230901115910.701518-2-cyndis... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/tegra/gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 81991090adcc9..cd06f25499549 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -175,7 +175,7 @@ static void tegra_bo_unpin(struct host1x_bo_mapping *map) static void *tegra_bo_mmap(struct host1x_bo *bo) { struct tegra_bo *obj = host1x_to_tegra_bo(bo); - struct iosys_map map; + struct iosys_map map = { 0 }; int ret;
if (obj->vaddr) {