Re: SEGV when make is run with malformed environment

Martin Dorey <[email protected]> Tue, 23 Sep 2025 16:57:18 +0000
Newsgroups gmane.comp.gnu.make.bugs
Message-ID <SJ0PR08MB67040A0FB88B6414FD2A163BFA1DA@SJ0PR08MB6704.namprd08.prod.outlook.com>
You don't mention which version of GNU Make you're using.  I see similar if I use the version from Debian Buster, but not in the latest version.  It seems likely to have been fixed nearly five years ago under:

https://savannah.gnu.org/bugs/?59601
buffer over-read on malformed environment variable

________________________________
From: [email protected] <[email protected]> on behalf of Mohamed Ait Oubarka <[email protected]>
Sent: Monday, September 22, 2025 17:56
To: [email protected] <[email protected]>
Subject: SEGV when make is run with malformed environment

***** EXTERNAL EMAIL *****
Hello,

GNU Make crashes with a SEGV when the environment contains invalid entries. For example:

```c
#include <unistd.h>

int main(void)
{
    char *envp[] = {"key", NULL};    // key without value
    execve("/bin/make", (char *[]) {"/bin/make", NULL}, envp);
}
```

Regards,
OUBARKA