Failed to allocate secure memory: _sodium_malloc: Assertion `_unprotected_ptr_from_user_ptr(user_ptr) == unprotected_ptr' failed.

[marek22k]

Hello,

the secure memory function does not seem to be working as desired for me. Does anyone have any idea why?

$ cat test.cpp 
#include <iostream>
#include <cstddef>
#include <sodium.h>

int main()
{
	std::size_t total_size = 15;
	void * ptr = sodium_malloc(total_size * sizeof(char));
	sodium_free(ptr);
	return 0;
}
$ g++ test.cpp -lsodium
$ ./a.out
a.out: sodium/utils.c:629: _sodium_malloc: Assertion `_unprotected_ptr_from_user_ptr(user_ptr) == unprotected_ptr' failed.
Aborted (core dumped)

$ g++ --version
g++ (GCC) 15.1.1 20250425
Copyright (C) 2025 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ pacman -Qi libsodium
Name            : libsodium
Version         : 1.0.20-1
Description     : A modern, portable, easy to use crypto library
Architecture    : x86_64
URL             : https://github.com/jedisct1/libsodium
Licenses        : custom:ISC
Groups          : None
Provides        : libsodium.so=26-64
Depends On      : glibc
Optional Deps   : None
Required By     : fastd  minisign  ostree  python-pynacl  quicktun  remmina
                  rosenpass  unbound  usbguard  zeromq
Optional For    : None
Conflicts With  : None
Replaces        : None
Installed Size  : 539.45 KiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Mo 17 Jun 2024 20:54:30 UTC
Install Date    : Fr 21 Jun 2024 10:33:21 UTC
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature
$ uname -a
Linux ciel 6.14.8-hardened1-1-hardened #1 SMP PREEMPT_DYNAMIC Sun, 25 May 2025 11:06:57 +0000 x86_64 GNU/Linux

It also doesn't work with linux-lts:

Linux ciel 6.12.30-1-lts #1 SMP PREEMPT_DYNAMIC Thu, 22 May 2025 12:50:32 +0000 x86_64 GNU/Linux

[marek22k]

Duplicate of #1080, sorry for opening it again.