Re: [PATCH 4/6] staging: erofs: avoid loop in submit chains
From: Chao Yu
Date: Mon Aug 19 2019 - 10:50:25 EST
On 2019-8-19 18:34, Gao Xiang wrote:
> As reported by erofs-utils fuzzer, 2 conditions
> can happen in corrupted images, which can cause
> unexpected behaviors.
> - access the same pcluster one more time;
> - access the tail end pcluster again, e.g.
> _ access again (will trigger tail merging)
> 1 2 3 1 2 -> 1 2 3 1
> |_ tail end of the chain \___/ (unexpected behavior)
> Let's detect and avoid them now.
> Signed-off-by: Gao Xiang <gaoxiang25@xxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>