This is the 4.4.255 stable release
# gpg: Signature made Thu Feb 4 00:19:04 2021 EET
# gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E
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# By Thomas Gleixner (11) and others
# Via Greg Kroah-Hartman
* tag 'v4.4.255':
Linux 4.4.255
NFC: fix possible resource leak
NFC: fix resource leak when target index is invalid
iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
iommu/vt-d: Gracefully handle DMAR units with no supported address widths
can: dev: prevent potential information leak in can_fill_info()
mac80211: pause TX while changing interface type
RDMA/cxgb4: Fix the reported max_recv_sge value
xfrm: Fix oops in xfrm_replay_advance_bmp
netfilter: nft_dynset: add timeout extension to template
ARM: imx: build suspend-imx6.S with arm instruction set
futex: Prevent exit livelock
futex: Provide distinct return value when owner is exiting
futex: Add mutex around futex exit
futex: Provide state handling for exec() as well
futex: Sanitize exit state handling
futex: Mark the begin of futex exit explicitly
futex: Set task::futex_state to DEAD right after handling futex exit
futex: Split futex_mm_release() for exit/exec
exit/exec: Seperate mm_release()
futex: Replace PF_EXITPIDONE with a state
futex: Move futex exit handling into futex code
y2038: futex: Move compat implementation into futex.c
mt7601u: fix rx buffer refcounting
mt7601u: fix kernel crash unplugging the device
KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[]
net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family
wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
ACPI: sysfs: Prefer "compatible" modalias
Conflicts:
kernel/exit.c
Change-Id: I3b1284150c424ac3c26810f7de88acc16b5b4b60
674a75a07c