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Re: [PATCH 1/5] compat/posix: introduce writev(3p) wrapper

From
Simon Richter <simon.richter@hogyros.de>
Date
Jul 16, 2026, 08:47 UTC
Message-ID
<a2676ec6-39d5-4220-8549-10a17daec668@hogyros.de>
In-Reply-To
<20260716-pks-reintroduce-writev-v1-1-ea9038c884bc@pks.im>
Hi,
> +		if (iov[i].iov_len > maximum_signed_value_of_type(ssize_t) ||
> +		    iov[i].iov_len + sum > maximum_signed_value_of_type(ssize_t)) {
That feels like it could overflow.
    Simon
Previous: Patrick SteinhardtNext: Junio C Hamano
Message 3 of 27 in “Reintroduce writev(3p)”
  1. 0/5 Reintroduce writev(3p)Patrick Steinhardt, Jul 16, 2026
  2. 1/5 compat/posix: introduce writev(3p) wrapperPatrick Steinhardt, Jul 16, 2026
  3. Simon RichterJul 16, 2026
  4. Junio C HamanoJul 16, 2026
  5. Junio C HamanoJul 16, 2026
  6. Patrick SteinhardtAug 5, 2026
  7. 2/5 wrapper: introduce writev(3p) wrappersPatrick Steinhardt, Jul 16, 2026
  8. 3/5 wrapper: properly handle MAX_IO_SIZE in writev(3p)Patrick Steinhardt, Jul 16, 2026
  9. 4/5 sideband: use writev(3p) to send pktlinesPatrick Steinhardt, Jul 16, 2026
  10. 5/5 fast-import: use writev(3p) to send cat-blob responsesPatrick Steinhardt, Jul 16, 2026
  11. Johannes SixtJul 16, 2026
  12. Junio C HamanoJul 27, 2026
  13. Patrick SteinhardtAug 5, 2026
  14. Junio C HamanoAug 5, 2026
  15. Johannes SixtAug 5, 2026
  16. Junio C HamanoAug 5, 2026
  17. Johannes SixtAug 5, 2026
  18. Junio C HamanoAug 5, 2026
  19. Patrick SteinhardtAug 6, 2026
  20. Junio C HamanoAug 6, 2026
  21. Patrick SteinhardtAug 7, 2026
  22. 0/5 Reintroduce writev(3p)Patrick Steinhardt, Aug 7, 2026
  23. 1/5 compat/posix: introduce writev(3p) wrapperPatrick Steinhardt, Aug 7, 2026
  24. 2/5 wrapper: introduce writev(3p) wrappersPatrick Steinhardt, Aug 7, 2026
  25. 3/5 wrapper: properly handle MAX_IO_SIZE in writev(3p)Patrick Steinhardt, Aug 7, 2026
  26. 4/5 sideband: use writev(3p) to send pktlinesPatrick Steinhardt, Aug 7, 2026
  27. 5/5 fast-import: use writev(3p) to send cat-blob responsesPatrick Steinhardt, Aug 7, 2026

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