On Tue, Dec 15, 2015 at 10:04:01AM +0800, Qu Wenruo wrote: > Enhance chunk validation: > 1) Num_stripes > We already have such check but it's only in super block sys chunk > array. > Now check all on-disk chunks. > > 2) Chunk logical > It should be aligned to sector size. > This behavior should be *DOUBLE CHECKED* for 64K sector size like > PPC64 or AArch64. > Maybe we can found some hidden bugs. > > 3) Chunk length > Same as chunk logical, should be aligned to sector size. > > 4) Stripe length > It should be power of 2. > > 5) Chunk type > Any bit out of TYPE_MAS | PROFILE_MASK is invalid. > > With all these much restrict rules, several fuzzed image reported in > mail list should no longer cause btrfsck error. > > Reported-by: Vegard Nossum <vegard.nos...@oracle.com> > Signed-off-by: Qu Wenruo <quwen...@cn.fujitsu.com>
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