[PATCH v6 00/11] secure zeroing of memory

Stephen Hemminger stephen at networkplumber.org
Thu Feb 13 23:16:13 CET 2025


This series handles memset related bugs indentified by PVS Studio.
The root cause is that Gcc and other compilers are free to
optimize away memset called before free.

v6 - rename rte_memset_sensative to rte_memzero_explicit to more
     closely match kernel usage.
     use rte_free_sensistive in crypto/qat driver

Stephen Hemminger (11):
  eal: introduce new secure memory fill
  eal: add new secure free function
  crypto/qat: force zero of keys
  crypto/qat: fix size calculation for memset
  crypto/qat: use secure memset
  bus/uacce: remove memset before free
  compress/octeontx: remove unnecessary memset
  test: remove unneeded memset
  net/ntnic: check result of malloc
  net/ntnic: remove unnecessary memset
  devtools/cocci: add script to find problematic memset

 app/test/test_cmdline_cirbuf.c                |  2 -
 devtools/cocci/memset_free.cocci              |  9 ++++
 drivers/bus/uacce/uacce.c                     |  1 -
 drivers/compress/octeontx/otx_zip.c           |  1 -
 drivers/compress/octeontx/otx_zip_pmd.c       |  2 -
 drivers/crypto/qat/qat_asym.c                 |  5 +--
 drivers/crypto/qat/qat_sym_session.c          | 43 ++++++++++---------
 drivers/net/ntnic/nthw/core/nthw_hif.c        |  5 +--
 drivers/net/ntnic/nthw/core/nthw_iic.c        |  5 +--
 drivers/net/ntnic/nthw/core/nthw_pcie3.c      |  5 +--
 drivers/net/ntnic/nthw/core/nthw_rpf.c        |  5 +--
 drivers/net/ntnic/nthw/core/nthw_sdc.c        |  5 +--
 drivers/net/ntnic/nthw/core/nthw_si5340.c     |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_cat.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_csu.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_flm.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_hfu.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_hsh.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_info.c   |  5 +--
 .../net/ntnic/nthw/flow_filter/flow_nthw_km.c |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_pdb.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_qsl.c    |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_rpp_lr.c |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_slc_lr.c |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_tx_cpy.c |  1 -
 .../ntnic/nthw/flow_filter/flow_nthw_tx_ins.c |  5 +--
 .../ntnic/nthw/flow_filter/flow_nthw_tx_rpl.c |  5 +--
 .../net/ntnic/nthw/model/nthw_fpga_model.c    |  1 -
 drivers/net/ntnic/nthw/nthw_rac.c             |  4 +-
 lib/eal/common/rte_malloc.c                   | 30 ++++++++++---
 lib/eal/include/rte_malloc.h                  | 20 +++++++++
 lib/eal/include/rte_string_fns.h              | 24 +++++++++++
 lib/eal/version.map                           |  3 ++
 33 files changed, 125 insertions(+), 116 deletions(-)
 create mode 100644 devtools/cocci/memset_free.cocci

-- 
2.47.2



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