Messages in this thread Patch in this message | | | From | Kunwu Chan <> | Subject | [PATCH] drm/msm/gpu: Fix null-pointer dereference in zap_shader_load_mdt | Date | Thu, 23 Nov 2023 11:33:29 +0800 |
| |
kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.
Fixes: a9e2559c931d ("drm/msm/gpu: Move zap shader loading to adreno") Signed-off-by: Kunwu Chan <chentao@kylinos.cn> --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 3fe9fd240cc7..0ebf86ffd57b 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -144,6 +144,10 @@ static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname, char *newname; newname = kasprintf(GFP_KERNEL, "qcom/%s", fwname); + if (!newname) { + ret = -ENOMEM; + goto out; + } ret = qcom_mdt_load(dev, fw, newname, pasid, mem_region, mem_phys, mem_size, NULL); -- 2.34.1
| |