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70f3c8b7c2
For a PUD hugepage entry, we need to propagate bits [32:22] from virtual address to resolve at 4M granularity. However, the current code was incorrectly propagating bits [29:19]. This bug can cause incorrect data to be returned for pages backed with 16G hugepages. Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com> Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> |
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