3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Liu Bo <bo.li....@oracle.com>
commit cd857dd6bc2ae9ecea14e75a34e8a8fdc158e307 upstream.
We want to make sure the point is still within the extent item, not to verify
the memory it's pointing to.
Signed-off-by: Liu Bo <bo.li....@oracle.com>
Signed-off-by: Chris Mason <c...@fb.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/btrfs/backref.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1033,7 +1033,7 @@ static int __get_extent_inline_ref(unsig
*out_eiref = (struct btrfs_extent_inline_ref *)(ei + 1);
}
*ptr = (unsigned long)*out_eiref;
- if ((void *)*ptr >= (void *)ei + item_size)
+ if ((unsigned long)(*ptr) >= (unsigned long)ei + item_size)
return -ENOENT;
}
--
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