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gh-157335: Fix out-of-bounds write in mmap.mmap.setitem - #157438

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vstinner merged 16 commits into

python:mainfrom

Joekrry:fix-mmap-setitem-resize-reentrancy

Sep 23, 2026

Merged

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem#157438
vstinner merged 16 commits into
python:mainfrom
Joekrry:fix-mmap-setitem-resize-reentrancy

Commits on Sep 13, 2026
- gh-157335: Fixed out of bounds write in mmap.mmap.__setitem__. Assigning to a single index causes mmap.mmap.__setitem__ to validate the index against the object's size, which then converts the assi…
  Joekrry
  committed
  c9b2513
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  884eb9d
Commits on Sep 15, 2026
- gh-157335: Address review feedback on mmap setitem reentrancy fix
  Joekrry
  committed
  4095226
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  ed62a31
- gh:157335: fixed CI failure from mmap setitem reentrancy
  Joekrry
  committed
  c9e4016
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  b851d5f
- gh:157335: mmap setitem bound checks altered, as per reviews
  Joekrry
  committed
  c9f67ac
- Merge branch 'fix-mmap-setitem-resize-reentrancy' of https://github.com/Joekrry/cpython into fix-mmap-setitem-resize-reentrancy
  Joekrry
  committed
  2d7d2aa
- Update Modules/mmapmodule.c
  
  Joekrry
  and
  vstinner
  authored
  0bc662a
- Update Misc/NEWS.d/next/Library/2026-09-13-15-58-28.gh-issue-157335.efaMah.rst
  
  Joekrry
  and
  vstinner
  authored
  06d8548
- Update Lib/test/test_mmap.py
  
  Joekrry
  and
  vstinner
  authored
  7de2dd3
- Update Lib/test/test_mmap.py
  
  Joekrry
  and
  vstinner
  authored
  4c7991b
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  c2cd539
- gh-157335 Removed redundant CHECK_VALID check.
  Joekrry
  committed
  11cbbe9
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  b03446e
- Merge branch 'main' into fix-mmap-setitem-resize-reentrancy
  Joekrry
  authored
  adfc2d5

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem by Joekrry · Pull Request #157438 · python/cpython · GitHub

Repository navigation

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem - #157438

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem#157438
vstinner merged 16 commits into
python:mainfrom
Joekrry:fix-mmap-setitem-resize-reentrancy

Commits on Sep 13, 2026

gh-157335: Fixed out of bounds write in mmap.mmap.setitem. Assigning to a single index causes mmap.mmap.setitem to validate the index against the object's size, which then converts the assi…

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

Commits on Sep 15, 2026

gh-157335: Address review feedback on mmap setitem reentrancy fix

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

gh:157335: fixed CI failure from mmap setitem reentrancy

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

gh:157335: mmap setitem bound checks altered, as per reviews

Merge branch 'fix-mmap-setitem-resize-reentrancy' of https://github.com/Joekrry/cpython into fix-mmap-setitem-resize-reentrancy

Update Modules/mmapmodule.c

Update Misc/NEWS.d/next/Library/2026-09-13-15-58-28.gh-issue-157335.efaMah.rst

Update Lib/test/test_mmap.py

Update Lib/test/test_mmap.py

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

gh-157335 Removed redundant CHECK_VALID check.

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

Merge branch 'main' into fix-mmap-setitem-resize-reentrancy

gh-157335: Fix out-of-bounds write in mmap.mmap.__setitem__ by Joekrry · Pull Request #157438 · python/cpython · GitHub

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gh-157335: Fix out-of-bounds write in mmap.mmap.__setitem__ - #157438

gh-157335: Fix out-of-bounds write in mmap.mmap.__setitem__#157438vstinner merged 16 commits intopython:mainpython/cpython:mainfrom Joekrry:fix-mmap-setitem-resize-reentrancyJoekrry/cpython:fix-mmap-setitem-resize-reentrancyCopy head branch name to clipboard

Commits

Commits on Sep 13, 2026

Commits on Sep 15, 2026

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem by Joekrry · Pull Request #157438 · python/cpython · GitHub

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem - #157438

gh-157335: Fix out-of-bounds write in mmap.mmap.setitem#157438
vstinner merged 16 commits into
python:mainfrom
Joekrry:fix-mmap-setitem-resize-reentrancy