APPLIED: [SRU][K:master-next][PATCH v3 0/2] fix bio_split_to_limits() NULL pointer dereference

[Stefan Bader]

On 01.06.23 11:40, 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(-)
> 

Applied to kinetic:linux/master-next. Thanks.

-Stefan

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