On Fri, Apr 24, 2015 at 09:12:41AM +0800, Qu Wenruo wrote: > Although only RAID10 use sub_stripes, a hostile attack can modify chunk > tree and just add RAID10 bit to a single chunk. > Then btrfs_map_block will trigger a 0 division in kernel and destroy > everything. > > Just add extra check when reading chunk from disk. > > Reported-by: Lukas Lueg <lukas.lueg@xxxxxxxxx> > Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
