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-rw-r--r--mm/fremap.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/fremap.c b/mm/fremap.c
index 0cd4c11488ed..6a8da7ee85fd 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -163,7 +163,8 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
* and that the remapped range is valid and fully within
* the single existing vma.
*/
- if (!vma || !(vma->vm_flags & VM_SHARED))
+ vm_flags = vma->vm_flags;
+ if (!vma || !(vm_flags & VM_SHARED))
goto out;
if (!vma->vm_ops || !vma->vm_ops->remap_pages)
@@ -254,7 +255,8 @@ get_write_lock:
*/
out:
- vm_flags = vma->vm_flags;
+ if (vma)
+ vm_flags = vma->vm_flags;
if (likely(!has_write_lock))
up_read(&mm->mmap_sem);
else

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