> On 7 Dec 2018, at 13.03, Matias Bjørling wrote:
>
> On 12/07/2018 10:12 AM, Javier Gonzalez wrote:
>>> On 6 Dec 2018, at 16.45, Igor Konopko wrote:
>>>
>>> When we are using PBLK with 0 sized metadata during recovery
>>> process we need to reference a last page of bio. Currently
>>> KASAN
On 12/07/2018 10:12 AM, Javier Gonzalez wrote:
On 6 Dec 2018, at 16.45, Igor Konopko wrote:
When we are using PBLK with 0 sized metadata during recovery
process we need to reference a last page of bio. Currently
KASAN reports use-after-free in that case, since bio is
freed on IO completion.
> On 6 Dec 2018, at 16.45, Igor Konopko wrote:
>
> When we are using PBLK with 0 sized metadata during recovery
> process we need to reference a last page of bio. Currently
> KASAN reports use-after-free in that case, since bio is
> freed on IO completion.
>
> This patch adds addtional bio
When we are using PBLK with 0 sized metadata during recovery
process we need to reference a last page of bio. Currently
KASAN reports use-after-free in that case, since bio is
freed on IO completion.
This patch adds addtional bio reference to ensure, that we
can still use bio memory after IO
