[PATCH v3 00/14] lib/mpi: bug fixes and cleanup

From: Nicolai Stange
Date: Tue Mar 22 2016 - 08:14:09 EST

Former v2 can be found here:


This v3 series incorporates a fix to the pointer arithmetic issue in v2's
[8/14] ("lib/mpi: mpi_read_buffer(): fix buffer overflow") spotted by
Tadeusz Struk.

The rest, that is [1-7,9-14/14], go unchanged and have got a

Tested-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>


Applicable to linux-next-20160322.

Changes to v2:
- [8/14] ("lib/mpi: mpi_read_buffer(): fix buffer overflow")
+ Fix the pointer arithmetic issue found by Tadeusz Struk

Changes to v1:
- [1-8/14]
former [1-8/8], unchanged.

- [9-14/14]
Added in v2. Fixes to mpi_read_raw_from_sgl().

Nicolai Stange (14):
lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs
lib/mpi: mpi_write_sgl(): fix style issue with lzero decrement
lib/mpi: mpi_write_sgl(): purge redundant pointer arithmetic
lib/mpi: mpi_write_sgl(): fix out-of-bounds stack access
lib/mpi: mpi_write_sgl(): replace open coded endian conversion
lib/mpi: mpi_read_buffer(): optimize skipping of leading zero limbs
lib/mpi: mpi_read_buffer(): replace open coded endian conversion
lib/mpi: mpi_read_buffer(): fix buffer overflow
lib/mpi: mpi_read_raw_from_sgl(): replace len argument by nbytes
lib/mpi: mpi_read_raw_from_sgl(): don't include leading zero SGEs in
lib/mpi: mpi_read_raw_from_sgl(): purge redundant clearing of nbits
lib/mpi: mpi_read_raw_from_sgl(): fix nbits calculation
lib/mpi: mpi_read_raw_from_sgl(): sanitize meaning of indices
lib/mpi: mpi_read_raw_from_sgl(): fix out-of-bounds buffer access

lib/mpi/mpicoder.c | 122 +++++++++++++++++++----------------------------------
1 file changed, 43 insertions(+), 79 deletions(-)