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linux/drivers/block
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Roger Pau Monne 2400617da7 xen/blkfront: force data bouncing when backend is untrusted 
Split the current bounce buffering logic used with persistent grants
into it's own option, and allow enabling it independently of
persistent grants.  This allows to reuse the same code paths to
perform the bounce buffering required to avoid leaking contiguous data
in shared pages not part of the request fragments.

Reporting whether the backend is to be trusted can be done using a
module parameter, or from the xenstore frontend path as set by the
toolstack when adding the device.

This is CVE-2022-33742, part of XSA-403.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2022-07-01 10:00:50 +02:00
..
aoe aoe: Avoid flush_scheduled_work() usage 2022-05-01 06:41:41 -06:00
drbd drbd: Return true/false (not 1/0) from bool functions 2022-04-17 19:54:24 -06:00
mtip32xx mtip32xx: fix typo in comment 2022-05-21 06:32:27 -06:00
null_blk block: null_blk: Fix null_zone_write() 2022-06-02 07:11:28 -06:00
paride Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
rnbd rnbd-srv: use bdev_discard_alignment 2022-05-03 10:38:50 -06:00
xen-blkback xen-blkback: use bdev_discard_alignment 2022-05-04 05:24:40 -06:00
zram Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
amiflop.c block: remove the ->rq_disk field in struct request 2021-11-29 06:41:29 -07:00
ataflop.c ataflop: use a statically allocated error counters 2022-05-08 10:01:48 -07:00
brd.c brd: remove brd_devices_mutex mutex 2022-01-17 07:19:40 -07:00
floppy.c floppy: use a statically allocated error counter 2022-05-08 10:01:48 -07:00
Kconfig floppy: disable FDRAWCMD by default 2022-04-27 09:41:54 -07:00
loop.c for-5.19/drivers-2022-06-02 2022-06-03 10:25:56 -07:00
Makefile block: remove the rsxx driver 2021-12-16 10:57:04 -07:00
n64cart.c n64cart: convert bi_disk to bi_bdev->bd_disk fix build 2022-03-21 06:34:45 -06:00
nbd.c nbd: use pr_err to output error message 2022-05-27 20:39:33 -06:00
pktcdvd.c for-5.19/block-2022-05-22 2022-05-23 13:56:39 -07:00
ps3disk.c ps3disk: add error handling support for add_disk() 2021-10-30 11:03:37 -06:00
ps3vram.c block: remove GENHD_FL_EXT_DEVT 2021-11-29 06:38:35 -07:00
rbd_types.h libceph, rbd: replace zero-length array with flexible-array 2020-06-01 13:22:53 +02:00
rbd.c A big pile of assorted fixes and improvements for the filesystem with 2022-06-02 08:59:39 -07:00
sunvdc.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
swim3.c block: remove GENHD_FL_EXT_DEVT 2021-11-29 06:38:35 -07:00
swim_asm.S
swim.c block: remove GENHD_FL_EXT_DEVT 2021-11-29 06:38:35 -07:00
sx8.c blk-mq: remove the done argument to blk_execute_rq_nowait 2022-05-28 06:15:27 -06:00
virtio_blk.c virtio-blk: support mq_ops->queue_rqs() 2022-05-31 12:44:23 -04:00
xen-blkfront.c xen/blkfront: force data bouncing when backend is untrusted 2022-07-01 10:00:50 +02:00
z2ram.c block: remove GENHD_FL_EXT_DEVT 2021-11-29 06:38:35 -07:00