[Bug 295991] lib/libc posix_spawnp(): PATH-search child runs on an undersized rfork_thread stack and underflows into the caller's heap (heavily-linked processes; PHP proc_open)

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 295991] lib/libc posix_spawnp(): PATH-search child runs on an undersized rfork_thread stack and underflows into the caller's heap (heavily-linked processes; PHP proc_open)"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 27 Jun 2026 15:18:16 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295991

--- Comment #7 from Konstantin Belousov <kib@FreeBSD.org> ---
If the theory about alloca() is right, then https://reviews.freebsd.org/D57908
should help (but I did not tested).

Even if it is not, I believe that it is a useful change.

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