From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
There is an off-by-one range check on the upper limit of
index "no". Fix this by changing the > comparison to >=
Addresses-Coverity: ("Out-of-bounds read")
Fixes: a8ea8bdd9df9 ("lib/mpi: Extend the MPI library")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
resend to Cc linux-crypto
---
lib/mpi/mpiutil.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index 3c63710c20c6..632d0a4bf93f 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi/mpiutil.c
@@ -69,7 +69,7 @@ postcore_initcall(mpi_init);
*/
MPI mpi_const(enum gcry_mpi_constants no)
{
- if ((int)no < 0 || no > MPI_NUMBER_OF_CONSTANTS)
+ if ((int)no < 0 || no >= MPI_NUMBER_OF_CONSTANTS)
pr_err("MPI: invalid mpi_const selector %d\n", no);
if (!constants[no])
pr_err("MPI: MPI subsystem not initialized\n");
--
2.27.0
