| Message ID | 20211230070331.1046343-1-sunsetdzz@gmail.com |
|---|---|
| State | Accepted |
| Commit | dd827abe296fe4249b2f8c9b95f72f814ea8348c |
| Headers | show |
| Series | lib/mpi: Add the return value check of kcalloc() | expand |
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);
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);
Add the return value check of kcalloc() to avoid potential NULL ptr dereference. Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com> --- lib/mpi/mpi-mod.c | 2 ++ 1 file changed, 2 insertions(+)