[PATCH 0/6] add hardening checks to cmdline and cfgfile libs

[Bruce Richardson <bruce.richardson@intel.com>]

Using AI tools to review the cmdline and cfgfile libraries throws up a
couple of places in the libraries where additional hardening could help
prevent future issues. A number of these are purely defensive, e.g.
adding NULL checks to input parameters where a well-behaved app should
never call the function with a NULL value, and so those are not
explicitly marked for backport.

Bruce Richardson (6):
  cfgfile: add null checks to public APIs
  cfgfile: prevent issues with overflow on resize
  cmdline: harden parser result buffer handling
  cmdline: add explicit help function for bool type
  cmdline: guard zero-size destination buffers
  cmdline: add null checks for invalid input

 lib/cfgfile/rte_cfgfile.c          | 118 ++++++++++++++++++++---------
 lib/cmdline/cmdline.c              |   3 +
 lib/cmdline/cmdline_parse.c        |   6 +-
 lib/cmdline/cmdline_parse_bool.c   |  37 ++++++++-
 lib/cmdline/cmdline_parse_num.c    |   2 +-
 lib/cmdline/cmdline_parse_string.c |   3 +
 lib/cmdline/cmdline_rdline.c       |   3 +
 7 files changed, 128 insertions(+), 44 deletions(-)

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2.51.0