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| author | Zizhuang Deng <sunsetdzz@gmail.com> | 2021-12-30 10:03:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:03:58 +0300 |
| commit | b918c668d2954461eeaa8f2409e61bca92dcb324 (patch) | |
| tree | 70cc46cf6aa095600f0fbf3645a1ee861224bcbc /lib | |
| parent | d73d81447c6651904dd4a9e3fd88651ff174c1b7 (diff) | |
| download | linux-b918c668d2954461eeaa8f2409e61bca92dcb324.tar.xz | |
lib/mpi: Add the return value check of kcalloc()
[ Upstream commit dd827abe296fe4249b2f8c9b95f72f814ea8348c ]
Add the return value check of kcalloc() to avoid potential
NULL ptr dereference.
Fixes: a8ea8bdd9df9 ("lib/mpi: Extend the MPI library")
Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com>
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/mpi/mpi-mod.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |