Nuno Das Neves ab3e7a78d8 mshv: Fix create memory region overlap check ...

[ Upstream commit ba9eb9b86d ]

The current check is incorrect; it only checks if the beginning or end
of a region is within an existing region. This doesn't account for
userspace specifying a region that begins before and ends after an
existing region.

Change the logic to a range intersection check against gfns and uaddrs
for each region.

Remove mshv_partition_region_by_uaddr() as it is no longer used.

Fixes: 621191d709 ("Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs")
Reported-by: Michael Kelley <mhklinux@outlook.com>
Closes: https://lore.kernel.org/linux-hyperv/SN6PR02MB41575BE0406D3AB22E1D7DB5D4C2A@SN6PR02MB4157.namprd02.prod.outlook.com/
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-12-18 14:03:02 +01:00

..

channel_mgmt.c

Drivers: hv: Fix warnings for missing export.h header inclusion

2025-07-09 23:43:52 +00:00

channel.c

Drivers: hv: Simplify data structures for VMBus channel close message

2025-09-08 22:11:03 +00:00

connection.c

Drivers: hv: Use nested hypercall for post message and signal event

2025-07-15 06:24:16 +00:00

hv_balloon.c

hv_balloon: update the NR_BALLOON_PAGES state

2025-03-21 22:03:13 -07:00

hv_common.c

mshv: Add support for a new parent partition configuration

2025-09-08 22:10:51 +00:00

hv_debugfs.c

hv_debugfs: Make hv_debug_root static

2020-04-04 17:47:43 +01:00

hv_kvp.c

hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h

2025-01-10 00:54:21 +00:00

hv_proc.c

Drivers: hv: Fix warnings for missing export.h header inclusion

2025-07-09 23:43:52 +00:00

hv_snapshot.c

hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h

2025-01-10 00:54:21 +00:00

hv_trace_balloon.h

hv_balloon: trace post_status

2018-03-06 09:57:17 -08:00

hv_trace.c

hv: add SPDX license to trace

2018-03-28 13:24:56 +02:00

hv_trace.h

Drivers: hv: vmbus: Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE

2021-04-18 13:03:11 +00:00

hv_util.c

Drivers: hv: util: Avoid accessing a ringbuffer not initialized yet

2024-12-09 18:44:15 +00:00

hv_utils_transport.c

Drivers: hv: util: Cosmetic changes for hv_utils_transport.c

2025-09-08 22:10:55 +00:00

hv_utils_transport.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280

2019-06-05 17:36:36 +02:00

hv.c

Drivers: hv: Use nested hypercall for post message and signal event

2025-07-15 06:24:16 +00:00

hyperv_vmbus.h

uio_hv_generic: Fix sysfs creation path for ring buffer

2025-05-02 13:59:02 +02:00

Kconfig

Drivers: hv: Make CONFIG_HYPERV bool

2025-10-01 00:00:45 +00:00

Makefile

Drivers: hv: Make CONFIG_HYPERV bool

2025-10-01 00:00:45 +00:00

mshv_common.c

mshv: Use common "entry virt" APIs to do work in root before running guest

2025-09-30 22:50:48 +00:00

mshv_eventfd.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2025-07-30 17:14:01 -07:00

mshv_eventfd.h

Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs

2025-03-21 18:24:22 +00:00

mshv_irq.c

Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs

2025-03-21 18:24:22 +00:00

mshv_portid_table.c

Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs

2025-03-21 18:24:22 +00:00

mshv_root_hv_call.c

Drivers: hv: Fix warnings for missing export.h header inclusion

2025-07-09 23:43:52 +00:00

mshv_root_main.c

mshv: Fix create memory region overlap check

2025-12-18 14:03:02 +01:00

mshv_root.h

Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs

2025-03-21 18:24:22 +00:00

mshv_synic.c

Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs

2025-03-21 18:24:22 +00:00

mshv.h

mshv: Use common "entry virt" APIs to do work in root before running guest

2025-09-30 22:50:48 +00:00

ring_buffer.c

Drivers: hv: Fix warnings for missing export.h header inclusion

2025-07-09 23:43:52 +00:00

vmbus_drv.c

Drivers: hv: vmbus: Fix typos in vmbus_drv.c

2025-09-30 23:31:00 +00:00