在 2022年09月26日 17:23, Li Qiong 写道: > "struct_size() + n" may cause a integer overflow, > use size_add() to handle it. > > Signed-off-by: Li Qiong <liqiong@xxxxxxxxxxxx> > --- > drivers/gpu/drm/msm/msm_gem_submit.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c > index c9e4aeb14f4a..3dec87e46e50 100644 > --- a/drivers/gpu/drm/msm/msm_gem_submit.c > +++ b/drivers/gpu/drm/msm/msm_gem_submit.c > @@ -30,8 +30,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, > uint64_t sz; > int ret; > > - sz = struct_size(submit, bos, nr_bos) + > - ((u64)nr_cmds * sizeof(submit->cmd[0])); > + sz = size_add(struct_size(submit, bos, nr_bos), > + ((u64)nr_cmds * sizeof(submit->cmd[0]))); > > if (sz > SIZE_MAX) > return ERR_PTR(-ENOMEM); Sorry, This patch a mistake, drop it , please.
