Jens Axboe bc811f05d7 nbd: don't allow invalid blocksize settings ...

syzbot reports a divide-by-zero off the NBD_SET_BLKSIZE ioctl.
We need proper validation of the input here. Not just if it's
zero, but also if the value is a power-of-2 and in a valid
range. Add that.

Cc: stable@vger.kernel.org
Reported-by: syzbot <syzbot+25dbecbec1e62c6b0dd4@syzkaller.appspotmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2018-09-04 11:54:58 -06:00

..

aoe

drivers/block/aoe/aoedev: NULL check is not needed for mempool_destroy

2018-08-08 09:17:20 -06:00

drbd

drivers/block/drbd: remove the null check for kmem_cache_destroy

2018-08-08 10:04:42 -06:00

mtip32xx

drivers/block/mtip32xx: remove the null check for debugfs_remove_recursive

2018-08-08 09:17:18 -06:00

paride

block: paride: pd: mark expected switch fall-throughs

2018-08-09 10:17:38 -06:00

rsxx

block: Add and use op_stat_group() for indexing disk_stat fields.

2018-07-18 08:44:20 -06:00

xen-blkback

xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring

2018-08-27 12:12:04 -04:00

zram

drivers/block/zram/zram_drv.c: fix bug storing backing_dev

2018-08-22 10:52:45 -07:00

amiflop.c

genhd: Rename get_disk() to get_disk_and_module()

2018-02-26 09:48:42 -07:00

ataflop.c

genhd: Rename get_disk() to get_disk_and_module()

2018-02-26 09:48:42 -07:00

brd.c

block: make bdev_ops->rw_page() take a REQ_OP instead of bool

2018-07-18 08:44:14 -06:00

cryptoloop.c

block: cryptoloop - Fix build warning

2017-09-26 07:41:22 -06:00

DAC960.c

block/DAC960.c: make some arrays static const, shrinks object size

2018-08-21 11:00:17 -06:00

DAC960.h

DAC960: don't use block layer bounce buffers

2018-05-11 15:07:54 -06:00

floppy.c

block/floppy: remove redundant variable dflags

2018-07-09 09:07:52 -06:00

Kconfig

cdrom: Use struct scsi_sense_hdr internally

2018-08-02 15:22:39 -06:00

loop.c

block/loop: mark expected switch fall-through

2018-07-09 09:07:53 -06:00

loop.h

loop: remember whether sysfs_create_group() was done

2018-05-07 15:26:36 -06:00

Makefile

block: Rename the null_blk_mod kernel module back into null_blk

2018-07-24 09:54:36 -06:00

nbd.c

nbd: don't allow invalid blocksize settings

2018-09-04 11:54:58 -06:00

null_blk_main.c

null_blk: add lock drop/acquire annotation

2018-08-09 14:22:41 -06:00

null_blk_zoned.c

null_blk: add zone support

2018-07-09 09:07:55 -06:00

null_blk.h

null_blk: add zone support

2018-07-09 09:07:55 -06:00

pktcdvd.c

pktcdvd: fix setting of 'ret' error return for a few cases

2018-08-16 14:09:28 -06:00

ps3disk.c

ps3disk: handle highmem pages

2018-05-11 15:08:03 -06:00

ps3vram.c

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

rbd_types.h

…

rbd.c

Merge tag 'ceph-for-4.19-rc1' of git://github.com/ceph/ceph-client

2018-08-20 18:26:55 -07:00

skd_main.c

block: skd: Use %pad printk format for dma_addr_t values

2018-07-12 15:01:28 -06:00

skd_s1120.h

skd: Use __packed only when needed

2017-08-18 08:45:29 -06:00

sunvdc.c

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

swim3.c

block/swim: Rename macros to avoid inconsistent inverted logic

2018-04-16 21:49:35 -06:00

swim_asm.S

…

swim.c

block/swim: Select appropriate drive on device open

2018-04-16 21:49:35 -06:00

sx8.c

block: sanitize blk_get_request calling conventions

2018-05-14 08:55:12 -06:00

umem.c

block: Fix a race between the cgroup code and request queue initialization

2018-02-28 12:23:35 -07:00

umem.h

…

virtio_blk.c

block drivers/block: Use octal not symbolic permissions

2018-05-24 13:38:59 -06:00

xen-blkfront.c

xen/blkfront: reorder tests in xlblk_init()

2018-08-27 12:12:03 -04:00

xsysace.c

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

z2ram.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00