Messages in this thread Patch in this message | | | From | Zizhuang Deng <> | Subject | [PATCH] lib/mpi: add the return value check of kcalloc | Date | Thu, 30 Dec 2021 10:51:59 +0800 |
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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 | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/lib/mpi/mpi-mod.c b/lib/mpi/mpi-mod.c index 47bc59edd4ff..6fd6900f0798 100644 --- a/lib/mpi/mpi-mod.c +++ b/lib/mpi/mpi-mod.c @@ -41,6 +41,10 @@ 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); ctx->m_copied = 1; -- 2.25.1
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