1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Module kmemleak support
4  *
5  * Copyright (C) 2009 Catalin Marinas
6  */
7 
8 #include <linux/module.h>
9 #include <linux/kmemleak.h>
10 #include "internal.h"
11 
kmemleak_load_module(const struct module * mod,const struct load_info * info)12 void kmemleak_load_module(const struct module *mod,
13 			  const struct load_info *info)
14 {
15 	unsigned int i;
16 
17 	/* only scan the sections containing data */
18 	kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL);
19 
20 	for (i = 1; i < info->hdr->e_shnum; i++) {
21 		/* Scan all writable sections that's not executable */
22 		if (!(info->sechdrs[i].sh_flags & SHF_ALLOC) ||
23 		    !(info->sechdrs[i].sh_flags & SHF_WRITE) ||
24 		    (info->sechdrs[i].sh_flags & SHF_EXECINSTR))
25 			continue;
26 
27 		kmemleak_scan_area((void *)info->sechdrs[i].sh_addr,
28 				   info->sechdrs[i].sh_size, GFP_KERNEL);
29 	}
30 }
31