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Date: Mon, 5 Mar 2012 06:39:47 +0000 From: Al Viro <viro@...IV.linux.org.uk> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: linux-kernel@...r.kernel.org Subject: [PATCH 2/3] VM_GROWS{UP,DOWN} shouldn't be set on shmem VMAs Signed-off-by: Al Viro <viro@...iv.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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