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-rw-r--r--mm/mremap.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 5d4bd4f..bc7c52e 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);
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