Re: [PATCH] RDMA/uverbs: Check for null return of kmalloc_array

From: Jason Gunthorpe
Date: Wed Jan 05 2022 - 13:24:43 EST


On Fri, Dec 31, 2021 at 05:33:15PM +0800, Jiasheng Jiang wrote:
> Because of the possible failure of the allocation, data might be NULL
> pointer and will cause the dereference of the NULL pointer later.
> Therefore, it might be better to check it and return -ENOMEM.
>
> Fixes: 6884c6c4bd09 ("RDMA/verbs: Store the write/write_ex uapi entry points in the uverbs_api")
> Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> ---
> drivers/infiniband/core/uverbs_uapi.c | 3 +++
> 1 file changed, 3 insertions(+)

Applied to for-rc, thanks

Jason