patch 9.0.2112: [security]: overflow in shift_line Commit: https://github.com/vim/vim/commit/6bf131888a3d1de62bbfa8a7ea03c0ddccfd496e Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 22:42:59 2023 +0100 patch 9.0.2112: [security]: overflow in shift_line Problem: [security]: overflow in shift_line Solution: allow a max indent of INT_MAX [security]: overflow in shift_line When shifting lines in operator pending mode and using a very large value, we may overflow the size of integer. Fix this by using a long variable, testing if the result would be larger than INT_MAX and if so, indent by INT_MAX value. Special case: We cannot use long here, since on 32bit architectures (or on Windows?), it typically cannot take larger values than a plain int, so we have to use long long count, decide whether the resulting multiplication of the shiftwidth value * amount is larger than INT_MAX and if so, we will store INT_MAX as possible larges value in the long long count variable. Then we can safely cast it back to int when calling the functions to set the indent (set_indent() or change_indent()). So this should be safe. Add a test that when using a huge value in operator pending mode for shifting, we will shift by INT_MAX closes: #13535 Signed-off-by: Christian Brabandt <cb@256bit.org>

env:
  CIRRUS_CLONE_DEPTH: 3
  FEATURES: huge

freebsd_task:
  name: FreeBSD
  matrix:
    - name: FreeBSD 14.0
      freebsd_instance:
        image_family: freebsd-14-0
  timeout_in: 20m
  install_script:
    - pkg install -y gettext
  build_script:
    - NPROC=$(getconf _NPROCESSORS_ONLN)
    - ./configure --with-features=${FEATURES}
    - make -j${NPROC}
  test_script:
    - src/vim --version
      # run tests as user "cirrus" instead of root
    - pw useradd cirrus -m
    - chown -R cirrus:cirrus .
    - sudo -u cirrus make test