AcoSail/kernel_optimize_test
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kernel_optimize_test/drivers/block
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Roger Pau Monne cbbd2d2531 xen/blkfront: force data bouncing when backend is untrusted 
commit 2400617da7eebf9167d71a46122828bc479d64c9 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-07 17:52:22 +02:00
..
aoe block: lift setting the readahead size into the block layer 2020-09-24 13:43:39 -06:00
drbd drbd: fix duplicate array initializer 2022-06-09 10:21:01 +02:00
mtip32xx blk-mq: move failure injection out of blk_mq_complete_request 2020-06-24 09:15:57 -06:00
paride paride/pcd: use bdev_check_media_change 2020-09-10 09:32:31 -06:00
rnbd block/rnbd-clt: Check the return value of the function rtrs_clt_query 2021-05-19 10:13:06 +02:00
rsxx block: rsxx: fix error return code of rsxx_pci_probe() 2021-03-17 17:06:33 +01:00
xen-blkback xen-blkback: fix compatibility bug with single page rings 2021-05-14 09:50:21 +02:00
zram zram: off by one in read_block_state() 2021-11-18 14:04:27 +01:00
amiflop.c amiflop: use bdev_check_media_change 2020-09-10 09:32:30 -06:00
ataflop.c ataflop: use bdev_check_media_change 2020-09-10 09:32:30 -06:00
brd.c bdi: remove BDI_CAP_SYNCHRONOUS_IO 2020-09-24 13:43:39 -06:00
cryptoloop.c cryptoloop: add a deprecation warning 2021-09-08 08:49:01 +02:00
floppy.c floppy: use a statically allocated error counter 2022-05-25 09:17:51 +02:00
Kconfig floppy: disable FDRAWCMD by default 2022-05-09 09:04:56 +02:00
loop.c loop: use sysfs_emit() in the sysfs xxx show() 2022-04-08 14:40:31 +02:00
loop.h block/loop: Use global lock for ioctl() operation. 2018-11-08 06:30:11 -07:00
Makefile block/rnbd: include client and server modules into kernel compilation 2020-05-17 18:57:17 -03:00
nbd.c nbd: fix io hung while disconnecting device 2022-06-14 18:32:44 +02:00
null_blk_main.c null_blk: fix command timeout completion handling 2021-04-16 11:43:21 +02:00
null_blk_trace.c null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_trace.h null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_zoned.c drivers/block/null_blk/main: Fix a double free in null_init. 2021-05-14 09:50:28 +02:00
null_blk.h null_blk: fix command timeout completion handling 2021-04-16 11:43:21 +02:00
pktcdvd.c pktcdvd: use blkdev_get_by_dev instead of open coding it 2020-09-23 10:43:19 -06:00
ps3disk.c ps3disk: use the default segment boundary 2020-05-19 00:10:35 +10:00
ps3vram.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
rbd_types.h libceph, rbd: replace zero-length array with flexible-array 2020-06-01 13:22:53 +02:00
rbd.c rbd: always kick acquire on "acquired" and "released" notifications 2021-07-28 14:35:46 +02:00
skd_main.c skd_main: remove unused including <linux/version.h> 2020-10-17 08:11:14 -06:00
skd_s1120.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
sunvdc.c compat_ioctl: block: handle cdrom compat ioctl in non-cdrom drivers 2020-01-03 09:33:15 +01:00
swim_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
swim.c swim: simplify media change handling 2020-09-10 09:32:30 -06:00
swim3.c swim3: use bdev_check_media_changed 2020-09-10 09:32:31 -06:00
sx8.c sx8: use a per-host tag_set 2018-11-09 08:14:14 -07:00
umem.c umem: fix error return code in mm_pci_probe() 2021-03-30 14:31:50 +02:00
umem.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348 2019-06-05 17:37:08 +02:00
virtio_blk.c virtio_blk: fix the discard_granularity and discard_alignment queue limits 2022-06-09 10:21:05 +02:00
xen-blkfront.c xen/blkfront: force data bouncing when backend is untrusted 2022-07-07 17:52:22 +02:00
xsysace.c xsysace: use platform_get_resource() and platform_get_irq_optional() 2020-10-29 08:22:33 -06:00
z2ram.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00