[GIT PULL] xen: branch for v5.10-rc1b

From: Juergen Gross
Date: Tue Oct 20 2020 - 08:10:00 EST


Linus,

Please git pull the following tag:

git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-5.10b-rc1b-tag

xen: branch for v5.10-rc1b

It contains the following:

- A single patch for fixing the Xen security issue XSA-331 (malicious
guests can DoS dom0 by triggering NULL-pointer dereferences or access
to stale data).

- A larger series for fixing the Xen security issue XSA-332 (malicious
guests can DoS dom0 by sending events at high frequency leading to
dom0's vcpus being busy in IRQ handling for elongated times).


Thanks.

Juergen

Documentation/admin-guide/kernel-parameters.txt | 8 +
drivers/block/xen-blkback/blkback.c | 22 +-
drivers/block/xen-blkback/xenbus.c | 5 +-
drivers/net/xen-netback/common.h | 15 +
drivers/net/xen-netback/interface.c | 61 +++-
drivers/net/xen-netback/netback.c | 11 +-
drivers/net/xen-netback/rx.c | 13 +-
drivers/xen/events/events_2l.c | 9 +-
drivers/xen/events/events_base.c | 423 ++++++++++++++++++++++--
drivers/xen/events/events_fifo.c | 83 +++--
drivers/xen/events/events_internal.h | 20 +-
drivers/xen/evtchn.c | 7 +-
drivers/xen/pvcalls-back.c | 76 +++--
drivers/xen/xen-pciback/pci_stub.c | 13 +-
drivers/xen/xen-pciback/pciback.h | 12 +-
drivers/xen/xen-pciback/pciback_ops.c | 48 ++-
drivers/xen/xen-pciback/xenbus.c | 2 +-
drivers/xen/xen-scsiback.c | 23 +-
include/xen/events.h | 21 ++
19 files changed, 707 insertions(+), 165 deletions(-)

Juergen Gross (13):
xen/events: avoid removing an event channel while handling it
xen/events: add a proper barrier to 2-level uevent unmasking
xen/events: fix race in evtchn_fifo_unmask()
xen/events: add a new "late EOI" evtchn framework
xen/blkback: use lateeoi irq binding
xen/netback: use lateeoi irq binding
xen/scsiback: use lateeoi irq binding
xen/pvcallsback: use lateeoi irq binding
xen/pciback: use lateeoi irq binding
xen/events: switch user event channels to lateeoi model
xen/events: use a common cpu hotplug hook for event channels
xen/events: defer eoi in case of excessive number of events
xen/events: block rogue events for some time