Messages in this thread | | | Date | Thu, 30 Dec 2021 15:26:30 +0800 | Subject | Re: [PATCH] lib/mpi: Add the return value check of kcalloc() | From | Tianjia Zhang <> |
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On 12/30/21 3:03 PM, Zizhuang Deng wrote: > Add the return value check of kcalloc() to avoid potential > NULL ptr dereference. > > Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com> > ---
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Best regards, Tianjia
> lib/mpi/mpi-mod.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/lib/mpi/mpi-mod.c b/lib/mpi/mpi-mod.c > index 47bc59edd4ff..54fcc01564d9 100644 > --- a/lib/mpi/mpi-mod.c > +++ b/lib/mpi/mpi-mod.c > @@ -40,6 +40,8 @@ mpi_barrett_t mpi_barrett_init(MPI m, int copy) > > mpi_normalize(m); > ctx = kcalloc(1, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return NULL; > > if (copy) { > ctx->m = mpi_copy(m);
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