Christoph Hellwig 199c89fd32 virtio_blk: avoid DMA to stack for the sense buffer ...

commit a14d749fce upstream.

Most users of BLOCK_PC requests allocate the sense buffer on the stack,
so to avoid DMA to the stack copy them to a field in the heap allocated
virtblk_req structure.  Without that any attempt at SCSI passthrough I/O,
including the SG_IO ioctl from userspace will crash the kernel.  Note that
this includes running tools like hdparm even when the host does not have
SCSI passthrough enabled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-01-19 20:18:03 +01:00

..

aoe

aoe: fix crash in page count manipulation

2016-11-12 08:27:07 -07:00

drbd

drbd: Fix kernel_sendmsg() usage - potential NULL deref

2016-11-09 17:08:32 -07:00

mtip32xx

blk-mq: remove ->map_queue

2016-09-15 08:42:03 -06:00

paride

paride: make 'verbose' parameter an 'int' again

2016-03-15 16:55:16 -07:00

rsxx

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

xen-blkback

Merge tag 'for-linus-4.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2016-07-27 11:35:37 -07:00

zram

zram: support BDI_CAP_STABLE_WRITES

2017-01-19 20:17:58 +01:00

amiflop.c

block: drop owner assignment from platform_drivers

2014-10-20 16:20:18 +02:00

ataflop.c

Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next

2014-06-02 09:29:34 -07:00

brd.c

block/mm: make bdev_ops->rw_page() take a bool for read/write

2016-08-07 14:41:02 -06:00

cciss_cmd.h

cciss: use new doorbell-bit-5 reset method

2011-05-06 08:23:55 -06:00

cciss_scsi.c

scsi: Do not set cmd_per_lun to 1 in the host template

2015-05-31 18:06:28 -07:00

cciss_scsi.h

cciss: add cciss_tape_cmds module paramter

2011-05-06 08:23:59 -06:00

cciss.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

cciss.h

cciss: Adds simple mode functionality

2011-08-08 11:40:15 +02:00

cryptoloop.c

block: cryptoloop - Use new skcipher interface

2016-01-27 20:35:43 +08:00

DAC960.c

block: DAC960: print a hex number after a 0x prefix

2016-10-27 18:43:43 -07:00

DAC960.h

Fix DAC960 driver on machines which don't support 64-bit DMA

2007-09-11 17:21:19 -07:00

floppy.c

Revert "floppy: refactor open() flags handling"

2016-08-25 08:56:51 -06:00

hd.c

block: hd: remove deprecated IRQF_DISABLED

2014-10-01 08:16:07 -06:00

Kconfig

cpqarray: remove it from the kernel

2016-03-14 09:06:01 -06:00

loop.c

loop: return proper error from loop_queue_rq()

2017-01-06 10:40:14 +01:00

loop.h

block: loop: support DIO & AIO

2015-09-23 11:01:16 -06:00

Makefile

drivers:block: cpqarray clean up

2016-03-15 15:59:47 -07:00

mg_disk.c

mg_disk: fix error path in mg_probe()

2016-06-28 11:01:27 -06:00

nbd.c

nbd: Fix error handling

2016-11-06 14:14:59 -07:00

null_blk.c

Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block

2016-10-09 17:29:33 -07:00

osdblk.c

block, drivers: add REQ_OP_FLUSH operation

2016-06-07 13:41:38 -06:00

pktcdvd.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

ps3disk.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

ps3vram.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

rbd_types.h

rbd: support for exclusive-lock feature

2016-08-24 23:49:16 +02:00

rbd.c

rbd: don't retry watch reregistration if header object is gone

2016-10-15 23:22:09 +02:00

skd_main.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

skd_s1120.h

skd: fix formatting in skd_s1120.h

2013-11-08 09:10:30 -07:00

smart1,2.h

fix typos 'comamnd' -> 'command' in comments

2011-02-02 11:31:21 +01:00

sunvdc.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

swim3.c

powerpc: Move Power Macintosh drivers to generic byteswappers

2015-03-23 14:29:40 +11:00

swim_asm.S

m68k: mac - Add SWIM floppy support

2009-03-26 21:15:27 +01:00

swim.c

block: drop owner assignment from platform_drivers

2014-10-20 16:20:18 +02:00

sx8.c

sx8: use real time for the command seconds

2015-12-23 08:42:59 -07:00

umem.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

umem.h

drivers/block/umem: trim trailing whitespace

2007-10-10 09:25:59 +02:00

virtio_blk.c

virtio_blk: avoid DMA to stack for the sense buffer

2017-01-19 20:18:03 +01:00

xen-blkfront.c

blk-mq: remove ->map_queue

2016-09-15 08:42:03 -06:00

xsysace.c

block: systemace: Remove .owner field for driver

2014-08-21 20:37:54 -05:00

z2ram.c

block: remove struct request buffer member

2014-04-15 14:03:02 -06:00