This patch series reverts MPI library extensions which are buggy as they carried assumptions from user-space that memory allocations always succeed. They were used by SM2 which itself has now been removed. Ironically most of these library functions were previously in the kernel in a non-buggy form but were removed because they were unused. About half of the extensions remain because they have found uses beyond SM2. For those error checks have been added. Herbert Xu (4): Revert "lib/mpi: Extend the MPI library" crypto: lib/mpi - Add error checks to extension crypto: dh - Check mpi_rshift errors crypto: rsa - Check MPI allocation errors crypto/dh.c | 4 +- crypto/rsa.c | 19 +- include/linux/mpi.h | 87 ++------- lib/crypto/mpi/Makefile | 1 - lib/crypto/mpi/mpi-add.c | 89 +++------ lib/crypto/mpi/mpi-bit.c | 168 ++--------------- lib/crypto/mpi/mpi-cmp.c | 46 +---- lib/crypto/mpi/mpi-div.c | 82 ++++----- lib/crypto/mpi/mpi-internal.h | 21 +-- lib/crypto/mpi/mpi-inv.c | 143 --------------- lib/crypto/mpi/mpi-mod.c | 148 +-------------- lib/crypto/mpi/mpi-mul.c | 29 ++- lib/crypto/mpi/mpicoder.c | 336 ---------------------------------- lib/crypto/mpi/mpih-mul.c | 25 --- lib/crypto/mpi/mpiutil.c | 184 +------------------ 15 files changed, 151 insertions(+), 1231 deletions(-) delete mode 100644 lib/crypto/mpi/mpi-inv.c -- 2.39.2
