This particular patch has been dropped, nbd-related big patchset has been
applied to 3.10.0-957.27.2.vz7.107.13 instead
which includes following patches:
d740eabf06cf nbd: don't allow invalid blocksize settings
9f9a1fbec525 nbd: stop leaking sockets
8344e50a033b nbd: cleanup workqueue on error
On 11.09.2019 15:45, Andrey Ryabinin wrote:
> The following commands trigger NULL-ptr dereference in ioctl(NBD_DO_IT):
>
> $ modprobe nbd
> $ qemu-img create -f qcow2 xxx 10G
> $ while true; do qemu-nbd -v -f qcow2 --detect-zeroes=on xxx -r -c
> /dev/nbd0 --cache=none
