[3.15] gh-157335: Fix out-of-bounds write in mmap.mmap.__setitem__ (GH-157438) - #158026
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…thonGH-157438) Fix out-of-bounds write in mmap.mmap.__setitem__() that could occur when converting the index or the assigned value (via __index__() for a single item, or via the buffer protocol for a slice) resized or closed the mmap object during the assignment. (cherry picked from commit 09bf4c5) Co-authored-by: Joseph Kerry <joerkerry@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
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Fix out-of-bounds write in mmap.mmap.setitem() that could occur
when converting the index or the assigned value (via index()
for a single item, or via the buffer protocol for a slice) resized or closed
the mmap object during the assignment.
(cherry picked from commit 09bf4c5)
Co-authored-by: Joseph Kerry joerkerry@gmail.com
Co-authored-by: Victor Stinner vstinner@python.org
mmap.mmap.__setitem__crashes when concurrently resized #157335