xref: /llvm-project/clang-tools-extra/docs/clang-tidy/checks/android/cloexec-inotify-init1.rst (revision 6e566bc5523f743bc34a7e26f050f1f2b4d699a8)
1.. title:: clang-tidy - android-cloexec-inotify-init1
2
3android-cloexec-inotify-init1
4=============================
5
6``inotify_init1()`` should include ``IN_CLOEXEC`` in its type argument to avoid the
7file descriptor leakage. Without this flag, an opened sensitive file would
8remain open across a fork+exec to a lower-privileged SELinux domain.
9
10Examples:
11
12.. code-block:: c++
13
14  inotify_init1(IN_NONBLOCK);
15
16  // becomes
17
18  inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
19