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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2018-06-07 17:09:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-07 17:34:38 -0700 |
| commit | daa280753cefa692607190852a98a9c06ae9ec9a (patch) | |
| tree | 7781b91dd6a9c1f68fcc22b29a4b111747465c28 /security | |
| parent | 7810e6781e0fcbca78b91cf65053f895bf59e85f (diff) | |
| download | linux-stable-daa280753cefa692607190852a98a9c06ae9ec9a.tar.gz linux-stable-daa280753cefa692607190852a98a9c06ae9ec9a.tar.bz2 linux-stable-daa280753cefa692607190852a98a9c06ae9ec9a.zip | |
mm/shmem.c: zero out unused vma fields in shmem_pseudo_vma_init()
shmem/tmpfs uses pseudo vma to allocate page with correct NUMA policy.
The pseudo vma doesn't have vm_page_prot set. We are going to encode
encryption KeyID in vm_page_prot. Having garbage there causes problems.
Zero out all unused fields in the pseudo vma.
Link: http://lkml.kernel.org/r/20180531135602.20321-1-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions