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Re: [PATCH 1/6] stash: tell setup_revisions() to free our allocated strings

From
Jeff King <peff@peff.net>
Date
Sep 23, 2025, 00:48 UTC
Message-ID
<20250923004808.GA2271307@coredump.intra.peff.net>
In-Reply-To
<xmqqms6mrxez.fsf@gitster.g>
On Mon, Sep 22, 2025 at 02:26:44PM -0700, Junio C Hamano wrote:
> By the way this also solves the original "git stash show -p --invalid";
> do we want to credit the bug reporter and mention that issue as well?

That's not handled by this patch, but rather by patch 2 ("manage memory ownership..."). I put this one first because until we start setting the free_removed_argv_elements flag, that second patch won't do anything for git-stash (and I don't think there was a way to trigger the problems from the other callers which did set it).

That patch discusses the original issue, but yeah, it could probably stand to have a:

  Reported-by: Lauri Niskanen <ape@ape3000.com>
trailer tacked on.
-Peff
Previous: Junio C HamanoNext: Jeff King
Message 17 of 26 in “[BUG] git stash show -p with invalid option aborts with double-free in show_stash() (strvec_clear)”
  1. Lauri NiskanenSep 19, 2025
  2. Kristoffer HaugsbakkSep 19, 2025
  3. Junio C HamanoSep 19, 2025
  4. Jeff KingSep 19, 2025
  5. Junio C HamanoSep 19, 2025
  6. Junio C HamanoSep 19, 2025
  7. Jeff KingSep 19, 2025
  8. Junio C HamanoSep 19, 2025
  9. Jeff KingSep 19, 2025
  10. 0/6 fixing double-frees and leaks via setup_revisions()Jeff King, Sep 19, 2025
  11. 1/6 stash: tell setup_revisions() to free our allocated stringsJeff King, Sep 19, 2025
  12. Junio C HamanoSep 22, 2025
  13. Jeff KingSep 22, 2025
  14. Junio C HamanoSep 22, 2025
  15. Jeff KingSep 22, 2025
  16. Junio C HamanoSep 22, 2025
  17. Jeff KingSep 23, 2025
  18. 2/6 revision: manage memory ownership of argv in setup_revisions()Jeff King, Sep 19, 2025
  19. 3/6 revision: add wrapper to setup_revisions() from a strvecJeff King, Sep 19, 2025
  20. Eric SunshineSep 20, 2025
  21. Jeff KingSep 20, 2025
  22. 4/6 treewide: use setup_revisions_from_strvec() when we have a strvecJeff King, Sep 19, 2025
  23. 5/6 treewide: pass strvecs around for setup_revisions_from_strvec()Jeff King, Sep 19, 2025
  24. Jeff KingSep 19, 2025
  25. 6/6 revision: retain argv NULL invariant in setup_revisions()Jeff King, Sep 19, 2025
  26. Jeff KingSep 19, 2025

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