6.6-stable review patch. If anyone has any objections, please let me know.
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From: Fanhua Li lifanhua5@huawei.com
[ Upstream commit bb8aeaa3191b617c6faf8ae937252e059673b7ea ]
When the nvif_vmm_type is invalid, we will return error directly without freeing the args in nvif_vmm_ctor(), which leading a memory leak. Fix it by setting the ret -EINVAL and goto done.
Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/all/202312040659.4pJpMafN-lkp@intel.com/ Fixes: 6b252cf42281 ("drm/nouveau: nvkm/vmm: implement raw ops to manage uvmm") Signed-off-by: Fanhua Li lifanhua5@huawei.com Link: https://lore.kernel.org/r/20250728115027.50878-1-lifanhua5@huawei.com Signed-off-by: Danilo Krummrich dakr@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvif/vmm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nvif/vmm.c b/drivers/gpu/drm/nouveau/nvif/vmm.c index 99296f03371a..07c1ebc2a941 100644 --- a/drivers/gpu/drm/nouveau/nvif/vmm.c +++ b/drivers/gpu/drm/nouveau/nvif/vmm.c @@ -219,7 +219,8 @@ nvif_vmm_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, case RAW: args->type = NVIF_VMM_V0_TYPE_RAW; break; default: WARN_ON(1); - return -EINVAL; + ret = -EINVAL; + goto done; }
memcpy(args->data, argv, argc);