Re: 2.5.55-rmk1: user space lossage

David Woodhouse (dwmw2@infradead.org)
Thu, 23 Jan 2003 10:01:12 +0000


akpm@digeo.com said:
> Linus did it!

> diff -puN mm/filemap.c~generic_file_readonly_mmap-fix mm/filemap.c
> --- 25/mm/filemap.c~generic_file_readonly_mmap-fix 2003-01-23 01:55:41 -0800
> +++ 25-akpm/mm/filemap.c 2003-01-23 01:55:45 -0800
> @@ -1312,7 +1312,6 @@ int generic_file_readonly_mmap(struct fi
> {
> if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
> return -EINVAL;
> - vma->vm_flags &= ~VM_MAYWRITE;
> return generic_file_mmap(file, vma);
> }
> #else

- if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
+- if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
++ if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE))

...?

--
dwmw2

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