First of all, welcome to WineHQ and thanks for your contribution! By "doesn't define a specific order" I assume you're referring to this paragraph:
Argument strings, environment strings, and the auxiliary information appear in no spe- cific order within the information block and they need not be compactly allocated.[^1]
However, the *de facto* Linux ABI guarantees that the argument strings are, in fact, in the argv[] order. Why? On Linux, the information block page is shared with the kernel. When you modify argv strings, it is reflected in `/proc/<PID>/cmdline` so that tools like `top` and `htop` can inspect them. So, the emulator is broken. Note that this patch doesn't work on the emulator either: it crashes *with or without* the assertion. The emulator needs to be fixed if it wants to run *Linux* programs, not just SysV ABI-compliant ones. Hopefully it accepts contributions? [^1]: H.J. Lu et al., *System V Application Binary Interface AMD64 Architecture Processor Supplement (With LP64 and ILP32 Programming Models), Version 1.0.* §3.4.1 "Initial Stack and Register State," March 12, 2025. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8396#note_107550