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95d42ebebc2cb4e23276dfd2d83d820e2622773e
linux/drivers/misc/vmw_vmci
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Alex Dewar 9c5e9f5057 VMCI: check return value of get_user_pages_fast() for errors 
[ Upstream commit 90ca6333fd ]

In a couple of places in qp_host_get_user_memory(),
get_user_pages_fast() is called without properly checking for errors. If
e.g. -EFAULT is returned, this negative value will then be passed on to
qp_release_pages(), which expects a u64 as input.

Fix this by only calling qp_release_pages() when we have a positive
number returned.

Fixes: 06164d2b72 ("VMCI: queue pairs implementation.")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Link: https://lore.kernel.org/r/20200825164522.412392-1-alex.dewar90@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29 10:07:32 +01:00
..
Kconfig
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Makefile
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
vmci_context.c
VMCI: Fix integer overflow in VMCI handle arrays
2019-06-21 16:04:05 +02:00
vmci_context.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_datagram.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_datagram.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_doorbell.c
VMCI: Release resource if the work is already queued
2019-08-28 22:57:07 +02:00
vmci_doorbell.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_driver.c
vsock/vmci: make vmci_vsock_cb_host_called static
2019-11-20 12:39:29 -08:00
vmci_driver.h
vsock/vmci: register vmci_transport only when VMCI guest/host are active
2019-11-14 18:12:18 -08:00
vmci_event.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_event.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_guest.c
vsock/vmci: register vmci_transport only when VMCI guest/host are active
2019-11-14 18:12:18 -08:00
vmci_handle_array.c
VMCI: Fix integer overflow in VMCI handle arrays
2019-06-21 16:04:05 +02:00
vmci_handle_array.h
VMCI: Fix integer overflow in VMCI handle arrays
2019-06-21 16:04:05 +02:00
vmci_host.c
vmci_host: get rid of pointless access_ok()
2020-05-29 11:06:38 -04:00
vmci_queue_pair.c
VMCI: check return value of get_user_pages_fast() for errors
2020-10-29 10:07:32 +01:00
vmci_queue_pair.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_resource.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_resource.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_route.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00
vmci_route.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
2019-06-05 17:37:05 +02:00