Bionic update: upstream stable patchset 2020-04-15

[Kamal Mostafa]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The following upstream
       stable patches should be included in the Ubuntu kernel:

       upstream stable patchset 2020-04-15

                Ported from the following upstream stable releases:
                        v4.14.176, v4.19.115

       from git://git.kernel.org/

ipv4: fix a RCU-list lock in fib_triestat_seq_show
net, ip_tunnel: fix interface lookup with no key
sctp: fix refcount bug in sctp_wfree
sctp: fix possibly using a bad saddr with a given dst
drm/bochs: downgrade pci_request_region failure from error to warning
initramfs: restore default compression behavior
tools/power turbostat: Fix gcc build warnings
drm/etnaviv: replace MMU flush marker with flush sequence
blk-mq: sync the update nr_hw_queues with blk_mq_queue_tag_busy_iter
blk-mq: Allow blocking queue tag iter callbacks
misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
coresight: do not use the BIT() macro in the UAPI header
padata: always acquire cpu_hotplug_lock before pinst->lock
mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
ipv6: don't auto-add link-local address to lag ports
net: dsa: bcm_sf2: Ensure correct sub-node is parsed
net: phy: micrel: kszphy_resume(): add delay after genphy_resume() before accessing PHY registers
net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
slcan: Don't transmit uninitialized stack data in padding
mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE
random: always use batched entropy for get_random_u{32,64}
tools/accounting/getdelays.c: fix netlink attribute length
hwrng: imx-rngc - fix an error path
ASoC: jz4740-i2s: Fix divider written at incorrect offset in register
IB/hfi1: Call kobject_put() when kobject_init_and_add() fails
IB/hfi1: Fix memory leaks in sysfs registration and unregistration
ceph: remove the extra slashes in the server path
ceph: canonicalize server path in place
Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
RDMA/cm: Update num_paths in cma_resolve_iboe_route error flow
fbcon: fix null-ptr-deref in fbcon_switch
clk: qcom: rcg: Return failure for RCG update
drm/msm: stop abusing dma_map/unmap for cache
arm64: Fix size of __early_cpu_boot_status
rpmsg: glink: Remove chunk size word align warning
usb: dwc3: don't set gadget->is_otg flag
drm_dp_mst_topology: fix broken drm_dp_sideband_parse_remote_dpcd_read()
drm/msm: Use the correct dma_sync calls in msm_gem
misc: rtsx: set correct pcr_ops for rts522A
mei: me: add cedar fork device ids
power: supply: axp288_charger: Add special handling for HP Pavilion x2 10
rxrpc: Fix sendmsg(MSG_WAITALL) handling
bitops: protect variables in set_mask_bits() macro
RDMA/ucma: Put a lock around every call to the rdma_cm layer
RDMA/cma: Teach lockdep about the order of rtnl and lock
UBUNTU: upstream stable to v4.14.176, v4.19.115

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-101.102

---------------
linux (4.15.0-101.102) bionic; urgency=medium

  * bionic/linux: 4.15.0-101.102 -proposed tracker (LP: #1877262)

  * 4.15.0-100.101 breaks userspace builds due to a bug in the headers
    /usr/include/linux/swab.h of linux-libc-dev (LP: #1877123)
    - include/uapi/linux/swab.h: fix userspace breakage, use __BITS_PER_LONG for
      swap

  * bionic snapdragon 4.15 snap failed Certification testing (LP: #1877657)
    - Revert "drm/msm: Use the correct dma_sync calls in msm_gem"
    - Revert "drm/msm: stop abusing dma_map/unmap for cache"

linux (4.15.0-100.101) bionic; urgency=medium

  * bionic/linux: 4.15.0-100.101 -proposed tracker (LP: #1875878)

  * built-using constraints preventing uploads (LP: #1875601)
    - temporarily drop Built-Using data

  * Add debian/rules targets to compile/run kernel selftests (LP: #1874286)
    - [Packaging] add support to compile/run selftests

  * getitimer returns it_value=0 erroneously (LP: #1349028)
    - [Config] CONTEXT_TRACKING_FORCE policy should be unset

  * QEMU/KVM display is garbled when booting from kernel EFI stub due to missing
    bochs-drm module (LP: #1872863)
    - [Config] Enable CONFIG_DRM_BOCHS as module for all archs

  * Backport MPLS patches from 5.3 to 4.15 (LP: #1851446)
    - net/mlx5e: Report netdevice MPLS features
    - net: vlan: Inherit MPLS features from parent device
    - net: bonding: Inherit MPLS features from slave devices
    - net/mlx5e: Move to HW checksumming advertising

  * LIO hanging in iscsit_free_session and iscsit_stop_session (LP: #1871688)
    - scsi: target: remove boilerplate code
    - scsi: target: fix hang when multiple threads try to destroy the same iscsi
      session
    - scsi: target: iscsi: calling iscsit_stop_session() inside
      iscsit_close_session() has no effect

  * Add hw timestamps to received skbs in peak_canfd (LP: #1874124)
    - can: peak_canfd: provide hw timestamps in rx skbs

  * Bionic update: upstream stable patchset 2020-04-23 (LP: #1874502)
    - ARM: dts: sun8i-a83t-tbs-a711: HM5065 doesn't like such a high voltage
    - bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads
    - net: vxge: fix wrong __VA_ARGS__ usage
    - hinic: fix a bug of waitting for IO stopped
    - hinic: fix wrong para of wait_for_completion_timeout
    - cxgb4/ptp: pass the sign of offset delta in FW CMD
    - qlcnic: Fix bad kzalloc null test
    - i2c: st: fix missing struct parameter description
    - firmware: arm_sdei: fix double-lock on hibernate with shared events
    - null_blk: Fix the null_add_dev() error path
    - null_blk: Handle null_add_dev() failures properly
    - null_blk: fix spurious IO errors after failed past-wp access
    - xhci: bail out early if driver can't accress host in resume
    - x86: Don't let pgprot_modify() change the page encryption bit
    - block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices
    - irqchip/versatile-fpga: Handle chained IRQs properly
    - sched: Avoid scale real weight down to zero
    - selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault
    - PCI/switchtec: Fix init_completio...