CVE-2003-0985

This exploit targets a Linux kernel vulnerability (CVE-2003-0985) in the mremap() system call, which allows local privilege escalation to root by manipulating memory mappings and exploiting a race condition. The PoC uses a combination of memory mapping, signal handling, and slab allocation manipulation to achieve arbitrary code execution in kernel context.

This code tests the do_mremap() Linux kernel bug (CVE-2003-0985) by attempting to remap memory regions. It checks if the kernel is vulnerable by verifying if the remapping operation succeeds, which could lead to privilege escalation.

This PoC exploits a vulnerability in the Linux kernel's do_mremap() function (CVE-2003-0985) by attempting to remap memory with invalid parameters, potentially leading to a local privilege escalation. The code calls real_mremap with a zero-sized old region and a fixed new address, triggering the vulnerability.