Messages in this thread Patch in this message | | | Date | Mon, 5 Mar 2012 06:39:47 +0000 | From | Al Viro <> | Subject | [PATCH 2/3] VM_GROWS{UP,DOWN} shouldn't be set on shmem VMAs |
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- mm/mmap.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/mm/mmap.c b/mm/mmap.c index 3f758c7..22e1a0b 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1293,6 +1293,8 @@ munmap_back: pgoff = vma->vm_pgoff; vm_flags = vma->vm_flags; } else if (vm_flags & VM_SHARED) { + if (unlikely(vm_flags & (VM_GROWSDOWN|VM_GROWSUP))) + goto free_vma; error = shmem_zero_setup(vma); if (error) goto free_vma; -- 1.7.2.5
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