Resizing an anonymous mmap can lead to crash #138204
Description
Crash report
>>> import mmap
>>> m = mmap.mmap(-1, mmap.PAGESIZE)
>>> m.resize(2 * mmap.PAGESIZE)
>>> m[:]
Bus error (core dumped)Tested on Linux.
{{ message }}
>>> import mmap
>>> m = mmap.mmap(-1, mmap.PAGESIZE)
>>> m.resize(2 * mmap.PAGESIZE)
>>> m[:]
Bus error (core dumped)Tested on Linux.