[PATCH v2] staging: erofs: fix unexpected out-of-bound data access

Gao Xiang gaoxiang25 at huawei.com
Fri Apr 12 14:38:09 UTC 2019



On 2019/4/12 21:51, Dan Carpenter wrote:
> On Fri, Apr 12, 2019 at 05:53:14PM +0800, Gao Xiang wrote:
>> Unexpected out-of-bound data will be read in erofs_read_raw_page
>> after commit 07173c3ec276 ("block: enable multipage bvecs") since
>> one iovec could have multiple pages.
>>
>> Let's fix as what Ming's pointed out in the previous email [1].
>>
>> [1] https://lore.kernel.org/lkml/20190411080953.GE421@ming.t460p/
>>
> 
> Please also use the Fixes tag.
> 
> Fixes: 07173c3ec276 ("block: enable multipage bvecs")

Thanks for reminder. Maybe Greg could add this line...

Thanks,
Gao Xiang

> 
>> Suggested-by: Ming Lei <ming.lei at redhat.com>
>> Reviewed-by: Chao Yu <yuchao0 at huawei.com>
>> Signed-off-by: Gao Xiang <gaoxiang25 at huawei.com>
> 
> regards,
> dan carpenter
> 


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