NACK: [SRU][K:master-next][PATCH v2 0/2] fix bio_split_to_limits() NULL pointer dereference

[Roxana Nicolescu]

On 01/06/2023 11:41, Roxana Nicolescu wrote:
>
> On 01/06/2023 10:27, Alexander Mikhalitsyn wrote:
>> BugLink: https://bugs.launchpad.net/bugs/2020901
>>
>> [Impact]
>> System crash/hung as a consequence of null pointer dereference.
>>
>> [Fix]
>> port appropriate patches from the upstream tree
>>
>> [Test]
>> We have a stable reproducer on the LXD/LXC CI.
>>
>> [Where problems could occur]
>> We've met this problem with Qemu VM (LVM storage).
>>
>> Jens Axboe (2):
>>    block: handle bio_split_to_limits() NULL return
>>    pktcdvd: check for NULL returna fter calling bio_split_to_limits()
>>
>>   block/blk-merge.c             | 4 +++-
>>   block/blk-mq.c                | 5 ++++-
>>   drivers/block/drbd/drbd_req.c | 2 ++
>>   drivers/block/pktcdvd.c       | 2 ++
>>   drivers/block/ps3vram.c       | 2 ++
>>   drivers/md/dm.c               | 2 ++
>>   drivers/md/md.c               | 2 ++
>>   drivers/nvme/host/multipath.c | 2 ++
>>   drivers/s390/block/dcssblk.c  | 2 ++
>>   9 files changed, 21 insertions(+), 2 deletions(-)
>>
> Hi Alexander,
>
> You forgot to put  (backported from <commit>) before your comments and 
> sob in both patches. But it can fixed during applying.
> Thanks for solving this!
>
> Roxana
NAcked, a v3 was sent in the meantime.