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Diffstat (limited to 'mm')
-rw-r--r--mm/mmap.c4
-rw-r--r--mm/mremap.c13
-rw-r--r--mm/nommu.c2
3 files changed, 14 insertions, 5 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index 906ed402f7c..9f70c8e8c87 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1023,10 +1023,10 @@ unsigned long do_mmap_pgoff(struct file * file, unsigned long addr,
}
}
- error = security_file_mmap(file, reqprot, prot, flags);
+ error = security_file_mmap(file, reqprot, prot, flags, addr, 0);
if (error)
return error;
-
+
/* Clear old maps */
error = -ENOMEM;
munmap_back:
diff --git a/mm/mremap.c b/mm/mremap.c
index 5d4bd4f95b8..bc7c52efc71 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -291,6 +291,10 @@ unsigned long do_mremap(unsigned long addr,
if ((addr <= new_addr) && (addr+old_len) > new_addr)
goto out;
+ ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
+ if (ret)
+ goto out;
+
ret = do_munmap(mm, new_addr, new_len);
if (ret)
goto out;
@@ -390,8 +394,13 @@ unsigned long do_mremap(unsigned long addr,
new_addr = get_unmapped_area(vma->vm_file, 0, new_len,
vma->vm_pgoff, map_flags);
- ret = new_addr;
- if (new_addr & ~PAGE_MASK)
+ if (new_addr & ~PAGE_MASK) {
+ ret = new_addr;
+ goto out;
+ }
+
+ ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
+ if (ret)
goto out;
}
ret = move_vma(vma, addr, old_len, new_len, new_addr);
diff --git a/mm/nommu.c b/mm/nommu.c
index 2b16b00a5b1..989e2e9af5c 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -639,7 +639,7 @@ static int validate_mmap_request(struct file *file,
}
/* allow the security API to have its say */
- ret = security_file_mmap(file, reqprot, prot, flags);
+ ret = security_file_mmap(file, reqprot, prot, flags, addr, 0);
if (ret < 0)
return ret;