From: Liu Bo <bo.li.liu@xxxxxxxxxx> 3.12-stable review patch. If anyone has any objections, please let me know. =============== 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.liu@xxxxxxxxxx> Signed-off-by: Chris Mason <clm@xxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- fs/btrfs/backref.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 5eb50b5df777..79559682255a 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1409,7 +1409,7 @@ static int __get_extent_inline_ref(unsigned long *ptr, struct extent_buffer *eb, *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; } -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html