Juergen Gross d9d4ea17d6 xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status ... [ Upstream commit 6b51fd3f65 ] xenbus_map_ring_valloc() maps a ring page and returns the status of the used grant (0 meaning success). There are Xen hypervisors which might return the value 1 for the status of a failed grant mapping due to a bug. Some callers of xenbus_map_ring_valloc() test for errors by testing the returned status to be less than zero, resulting in no error detected and crashing later due to a not available ring page. Set the return value of xenbus_map_ring_valloc() to GNTST_general_error in case the grant status reported by Xen is greater than zero. This is part of XSA-316. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Wei Liu <wl@xen.org> Link: https://lore.kernel.org/r/20200326080358.1018-1-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-05-02 08:48:57 +02:00
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events	xen/events: remove unlikely() from WARN() condition	2019-09-26 10:10:17 -07:00
xen-pciback	xen/pciback: remove set but not used variable 'old_state'	2019-07-26 10:29:05 +02:00
xenbus	xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status	2020-05-02 08:48:57 +02:00
xenfs	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
Kconfig	xen/gntdev: Use select for DMA_SHARED_BUFFER	2019-12-31 16:45:01 +01:00
Makefile	xen: remove tmem driver	2019-07-17 08:09:58 +02:00
acpi.c	…
arm-device.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
balloon.c	xen/balloon: fix ballooned page accounting without hotplug enabled	2020-01-09 10:19:51 +01:00
biomerge.c	block: pass page to xen_biovec_phys_mergeable	2019-04-01 12:11:13 -06:00
cpu_hotplug.c	xen, cpu_hotplug: Prevent an out of bounds access	2019-03-08 17:58:14 +01:00
dbgp.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
efi.c	xen/efi: have a common runtime setup function	2019-10-02 10:31:07 -04:00
evtchn.c	xen/events: fix binding user event channels to cpus	2019-07-17 08:09:57 +02:00
features.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
gntalloc.c	…
gntdev-common.h	…
gntdev-dmabuf.c	xen/gntdev: Check and release imported dma-bufs on close	2019-02-18 06:50:10 +01:00
gntdev-dmabuf.h	xen/gntdev: Do not destroy context while dma-bufs are in use	2019-02-18 06:50:03 +01:00
gntdev.c	xen: Stop abusing DT of_dma_configure API	2019-10-10 11:43:35 -04:00
grant-table.c	xen/grant-table: remove unnecessary printing	2019-10-10 10:41:30 -04:00
manage.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
mcelog.c	…
mem-reservation.c	…
pci.c	xen/pci: reserve MCFG areas earlier	2019-09-12 15:02:55 -04:00
pcpu.c	…
platform-pci.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320	2019-06-05 17:37:05 +02:00
preempt.c	xen: Enable interrupts when calling _cond_resched()	2020-02-28 17:22:28 +01:00
privcmd-buf.c	xen/privcmd-buf.c: convert to use vm_map_pages_zero()	2019-05-14 09:47:50 -07:00
privcmd.c	xen: avoid link error on ARM	2019-07-31 08:14:12 +02:00
privcmd.h	…
pvcalls-back.c	net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head	2019-10-09 21:34:31 -07:00
pvcalls-front.c	xen: fixes for 5.2-rc3	2019-05-31 10:53:34 -07:00
pvcalls-front.h	…
swiotlb-xen.c	xen: features for 5.4-rc1	2019-09-26 11:22:14 -07:00
sys-hypervisor.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
time.c	…
xen-acpi-cpuhotplug.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12	2019-05-21 11:28:45 +02:00
xen-acpi-memhotplug.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12	2019-05-21 11:28:45 +02:00
xen-acpi-pad.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
xen-acpi-processor.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
xen-balloon.c	xen/balloon: Support xend-based toolstack take two	2020-02-11 04:35:36 -08:00
xen-front-pgdir-shbuf.c	…
xen-scsiback.c	xen: fixes and features for 5.1-rc1	2019-03-11 17:08:14 -07:00
xen-stub.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12	2019-05-21 11:28:45 +02:00
xlate_mmu.c	xen: avoid link error on ARM	2019-07-31 08:14:12 +02:00