Public bug reported:
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 2019-10-31
Ported from the following upstream stable releases:
v4.19.79, v5.3.6
from git://git.kernel.org/
s390/process: avoid potential reading of freed stack
KVM: s390: Test for bad access register and size at the start of S390_MEM_OP
s390/topology: avoid firing events before kobjs are created
s390/cio: exclude subchannels with no parent from pseudo check
KVM: PPC: Book3S HV: Fix race in re-enabling XIVE escalation interrupts
KVM: PPC: Book3S HV: Check for MMU ready on piggybacked virtual cores
KVM: PPC: Book3S HV: Don't lose pending doorbell request on migration on P9
KVM: X86: Fix userspace set invalid CR4
nbd: fix max number of supported devs
PM / devfreq: tegra: Fix kHz to Hz conversion
ASoC: Define a set of DAPM pre/post-up events
ASoC: sgtl5000: Improve VAG power and mute control
powerpc/mce: Fix MCE handling for huge pages
powerpc/mce: Schedule work from irq_work
powerpc/powernv: Restrict OPAL symbol map to only be readable by root
powerpc/powernv/ioda: Fix race in TCE level allocation
powerpc/book3s64/mm: Don't do tlbie fixup for some hardware revisions
can: mcp251x: mcp251x_hw_reset(): allow more time after a reset
tools lib traceevent: Fix "robust" test of do_generate_dynamic_list_file
crypto: qat - Silence smp_processor_id() warning
crypto: skcipher - Unmap pages after an external error
crypto: cavium/zip - Add missing single_release()
crypto: caam - fix concurrency issue in givencrypt descriptor
crypto: ccree - account for TEE not ready to report
crypto: ccree - use the full crypt length value
MIPS: Treat Loongson Extensions as ASEs
power: supply: sbs-battery: use correct flags field
power: supply: sbs-battery: only return health when battery present
tracing: Make sure variable reference alias has correct var_ref_idx
usercopy: Avoid HIGHMEM pfn warning
timer: Read jiffies once when forwarding base clk
PCI: vmd: Fix shadow offsets to reflect spec changes
watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout
perf stat: Fix a segmentation fault when using repeat forever
drm/omap: fix max fclk divider for omap36xx
drm/msm/dsi: Fix return value check for clk_get_parent
drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
drm/i915/gvt: update vgpu workload head pointer correctly
mmc: sdhci: improve ADMA error reporting
mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
Revert "locking/pvqspinlock: Don't wait if vCPU is preempted"
xen/xenbus: fix self-deadlock after killing user process
ieee802154: atusb: fix use-after-free at disconnect
s390/cio: avoid calling strlen on null pointer
cfg80211: initialize on-stack chandefs
ima: always return negative code for error
ima: fix freeing ongoing ahash_request
fs: nfs: Fix possible null-pointer dereferences in encode_attrs()
9p: Transport error uninitialized
9p: avoid attaching writeback_fid on mmap with type PRIVATE
xen/pci: reserve MCFG areas earlier
ceph: fix directories inode i_blkbits initialization
ceph: reconnect connection if session hang in opening state
watchdog: aspeed: Add support for AST2600
netfilter: nf_tables: allow lookups in dynamic sets
drm/amdgpu: Fix KFD-related kernel oops on Hawaii
drm/amdgpu: Check for valid number of registers to read
pNFS: Ensure we do clear the return-on-close layout stateid on fatal errors
pwm: stm32-lp: Add check in case requested period cannot be achieved
x86/purgatory: Disable the stackleak GCC plugin for the purgatory
ntb: point to right memory window index
thermal: Fix use-after-free when unregistering thermal zone device
thermal_hwmon: Sanitize thermal_zone type
libnvdimm/region: Initialize bad block for volatile namespaces
fuse: fix memleak in cuse_channel_open
libnvdimm/nfit_test: Fix acpi_handle redefinition
sched/membarrier: Call sync_core only before usermode for same mm
sched/membarrier: Fix private expedited registration check
sched/core: Fix migration to invalid CPU in __set_cpus_allowed_ptr()
perf build: Add detection of java-11-openjdk-devel package
kernel/elfcore.c: include proper prototypes
perf unwind: Fix libunwind build failure on i386 systems
nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed
KVM: PPC: Book3S HV: XIVE: Free escalation interrupts before disabling the VP
KVM: nVMX: Fix consistency check on injected exception error code
nbd: fix crash when the blksize is zero
powerpc/pseries: Fix cpu_hotplug_lock acquisition in resize_hpt()
powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
tools lib traceevent: Do not free tep->cmdlines in add_new_comm() on failure
tick: broadcast-hrtimer: Fix a race in bc_set_next
perf tools: Fix segfault in cpu_cache_level__read()
perf stat: Reset previous counts on repeat with interval
riscv: Avoid interrupts being erroneously enabled in handle_exception()
arm64: Add sysfs vulnerability show for spectre-v1
arm64: add sysfs vulnerability show for meltdown
arm64: enable generic CPU vulnerabilites support
arm64: Always enable ssb vulnerability detection
arm64: Provide a command line to disable spectre_v2 mitigation
arm64: Advertise mitigation of Spectre-v2, or lack thereof
arm64: Always enable spectre-v2 vulnerability detection
arm64: add sysfs vulnerability show for spectre-v2
arm64: add sysfs vulnerability show for speculative store bypass
arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
arm64: Use firmware to detect CPUs that are not affected by Spectre-v2
arm64/speculation: Support 'mitigations=' cmdline option
vfs: Fix EOVERFLOW testing in put_compat_statfs64
coresight: etm4x: Use explicit barriers on enable/disable
staging: erofs: fix an error handling in erofs_readdir()
staging: erofs: some compressed cluster should be submitted for corrupted images
staging: erofs: add two missing erofs_workgroup_put for corrupted images
staging: erofs: detect potential multiref due to corrupted images
cfg80211: add and use strongly typed element iteration macros
cfg80211: Use const more consistently in for_each_element macros
nl80211: validate beacon head
KVM: s390: fix __insn32_query() inline assembly
crypto: caam/qi - fix error handling in ERN handler
PCI: vmd: Fix config addressing when using bus offsets
drm/atomic: Reject FLIP_ASYNC unconditionally
drm/atomic: Take the atomic toys away from X
drm/i915: to make vgpu ppgtt notificaiton as atomic operation
mac80211: keep BHs disabled while calling drv_tx_wake_queue()
mmc: tegra: Implement ->set_dma_mask()
mmc: sdhci: Let drivers define their DMA mask
libnvdimm/altmap: Track namespace boundaries in altmap
DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
xprtrdma: Toggle XPRT_CONGESTED in xprtrdma's slot methods
fuse: fix request limit
ceph: fetch cap_gen under spinlock in ceph_add_cap
perf probe: Fix to clear tev->nargs in clear_probe_trace_event()
selftests/seccomp: fix build on older kernels
iommu/amd: Fix downgrading default page-sizes in alloc_pte()
bpf: Fix bpf_event_output re-entry issue
i2c: qcom-geni: Disable DMA processing on the Lenovo Yoga C630
mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions
nfp: abm: fix memory leak in nfp_abm_u32_knode_replace
Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
libnvdimm: prevent nvdimm from requesting key when security is disabled
UBUNTU: upstream stable to v4.19.79, v5.3.6
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Assignee: Kamal Mostafa (kamalmostafa)
Status: In Progress
** Tags: kernel-stable-tracking-bug
** Changed in: linux (Ubuntu)
Status: New => Confirmed
** Tags added: kernel-stable-tracking-bug
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Disco)
Status: New => In Progress
** Changed in: linux (Ubuntu Disco)
Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)
** Description changed:
+ SRU Justification
- 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:
- 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 2019-10-31
- upstream stable patchset 2019-10-31
- from git://git.kernel.org/
+ Ported from the following upstream stable releases:
+ v4.19.79, v5.3.6
+
+ from git://git.kernel.org/
+
+ s390/process: avoid potential reading of freed stack
+ KVM: s390: Test for bad access register and size at the start of S390_MEM_OP
+ s390/topology: avoid firing events before kobjs are created
+ s390/cio: exclude subchannels with no parent from pseudo check
+ KVM: PPC: Book3S HV: Fix race in re-enabling XIVE escalation interrupts
+ KVM: PPC: Book3S HV: Check for MMU ready on piggybacked virtual cores
+ KVM: PPC: Book3S HV: Don't lose pending doorbell request on migration on P9
+ KVM: X86: Fix userspace set invalid CR4
+ nbd: fix max number of supported devs
+ PM / devfreq: tegra: Fix kHz to Hz conversion
+ ASoC: Define a set of DAPM pre/post-up events
+ ASoC: sgtl5000: Improve VAG power and mute control
+ powerpc/mce: Fix MCE handling for huge pages
+ powerpc/mce: Schedule work from irq_work
+ powerpc/powernv: Restrict OPAL symbol map to only be readable by root
+ powerpc/powernv/ioda: Fix race in TCE level allocation
+ powerpc/book3s64/mm: Don't do tlbie fixup for some hardware revisions
+ can: mcp251x: mcp251x_hw_reset(): allow more time after a reset
+ tools lib traceevent: Fix "robust" test of do_generate_dynamic_list_file
+ crypto: qat - Silence smp_processor_id() warning
+ crypto: skcipher - Unmap pages after an external error
+ crypto: cavium/zip - Add missing single_release()
+ crypto: caam - fix concurrency issue in givencrypt descriptor
+ crypto: ccree - account for TEE not ready to report
+ crypto: ccree - use the full crypt length value
+ MIPS: Treat Loongson Extensions as ASEs
+ power: supply: sbs-battery: use correct flags field
+ power: supply: sbs-battery: only return health when battery present
+ tracing: Make sure variable reference alias has correct var_ref_idx
+ usercopy: Avoid HIGHMEM pfn warning
+ timer: Read jiffies once when forwarding base clk
+ PCI: vmd: Fix shadow offsets to reflect spec changes
+ watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout
+ perf stat: Fix a segmentation fault when using repeat forever
+ drm/omap: fix max fclk divider for omap36xx
+ drm/msm/dsi: Fix return value check for clk_get_parent
+ drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
+ drm/i915/gvt: update vgpu workload head pointer correctly
+ mmc: sdhci: improve ADMA error reporting
+ mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
+ Revert "locking/pvqspinlock: Don't wait if vCPU is preempted"
+ xen/xenbus: fix self-deadlock after killing user process
+ ieee802154: atusb: fix use-after-free at disconnect
+ s390/cio: avoid calling strlen on null pointer
+ cfg80211: initialize on-stack chandefs
+ ima: always return negative code for error
+ ima: fix freeing ongoing ahash_request
+ fs: nfs: Fix possible null-pointer dereferences in encode_attrs()
+ 9p: Transport error uninitialized
+ 9p: avoid attaching writeback_fid on mmap with type PRIVATE
+ xen/pci: reserve MCFG areas earlier
+ ceph: fix directories inode i_blkbits initialization
+ ceph: reconnect connection if session hang in opening state
+ watchdog: aspeed: Add support for AST2600
+ netfilter: nf_tables: allow lookups in dynamic sets
+ drm/amdgpu: Fix KFD-related kernel oops on Hawaii
+ drm/amdgpu: Check for valid number of registers to read
+ pNFS: Ensure we do clear the return-on-close layout stateid on fatal errors
+ pwm: stm32-lp: Add check in case requested period cannot be achieved
+ x86/purgatory: Disable the stackleak GCC plugin for the purgatory
+ ntb: point to right memory window index
+ thermal: Fix use-after-free when unregistering thermal zone device
+ thermal_hwmon: Sanitize thermal_zone type
+ libnvdimm/region: Initialize bad block for volatile namespaces
+ fuse: fix memleak in cuse_channel_open
+ libnvdimm/nfit_test: Fix acpi_handle redefinition
+ sched/membarrier: Call sync_core only before usermode for same mm
+ sched/membarrier: Fix private expedited registration check
+ sched/core: Fix migration to invalid CPU in __set_cpus_allowed_ptr()
+ perf build: Add detection of java-11-openjdk-devel package
+ kernel/elfcore.c: include proper prototypes
+ perf unwind: Fix libunwind build failure on i386 systems
+ nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
+ drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed
+ KVM: PPC: Book3S HV: XIVE: Free escalation interrupts before disabling the VP
+ KVM: nVMX: Fix consistency check on injected exception error code
+ nbd: fix crash when the blksize is zero
+ powerpc/pseries: Fix cpu_hotplug_lock acquisition in resize_hpt()
+ powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
+ tools lib traceevent: Do not free tep->cmdlines in add_new_comm() on failure
+ tick: broadcast-hrtimer: Fix a race in bc_set_next
+ perf tools: Fix segfault in cpu_cache_level__read()
+ perf stat: Reset previous counts on repeat with interval
+ riscv: Avoid interrupts being erroneously enabled in handle_exception()
+ arm64: Add sysfs vulnerability show for spectre-v1
+ arm64: add sysfs vulnerability show for meltdown
+ arm64: enable generic CPU vulnerabilites support
+ arm64: Always enable ssb vulnerability detection
+ arm64: Provide a command line to disable spectre_v2 mitigation
+ arm64: Advertise mitigation of Spectre-v2, or lack thereof
+ arm64: Always enable spectre-v2 vulnerability detection
+ arm64: add sysfs vulnerability show for spectre-v2
+ arm64: add sysfs vulnerability show for speculative store bypass
+ arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
+ arm64: Use firmware to detect CPUs that are not affected by Spectre-v2
+ arm64/speculation: Support 'mitigations=' cmdline option
+ vfs: Fix EOVERFLOW testing in put_compat_statfs64
+ coresight: etm4x: Use explicit barriers on enable/disable
+ staging: erofs: fix an error handling in erofs_readdir()
+ staging: erofs: some compressed cluster should be submitted for corrupted
images
+ staging: erofs: add two missing erofs_workgroup_put for corrupted images
+ staging: erofs: detect potential multiref due to corrupted images
+ cfg80211: add and use strongly typed element iteration macros
+ cfg80211: Use const more consistently in for_each_element macros
+ nl80211: validate beacon head
+ KVM: s390: fix __insn32_query() inline assembly
+ crypto: caam/qi - fix error handling in ERN handler
+ PCI: vmd: Fix config addressing when using bus offsets
+ drm/atomic: Reject FLIP_ASYNC unconditionally
+ drm/atomic: Take the atomic toys away from X
+ drm/i915: to make vgpu ppgtt notificaiton as atomic operation
+ mac80211: keep BHs disabled while calling drv_tx_wake_queue()
+ mmc: tegra: Implement ->set_dma_mask()
+ mmc: sdhci: Let drivers define their DMA mask
+ libnvdimm/altmap: Track namespace boundaries in altmap
+ DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
+ xprtrdma: Toggle XPRT_CONGESTED in xprtrdma's slot methods
+ fuse: fix request limit
+ ceph: fetch cap_gen under spinlock in ceph_add_cap
+ perf probe: Fix to clear tev->nargs in clear_probe_trace_event()
+ selftests/seccomp: fix build on older kernels
+ iommu/amd: Fix downgrading default page-sizes in alloc_pte()
+ bpf: Fix bpf_event_output re-entry issue
+ i2c: qcom-geni: Disable DMA processing on the Lenovo Yoga C630
+ mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions
+ nfp: abm: fix memory leak in nfp_abm_u32_knode_replace
+ Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
+ libnvdimm: prevent nvdimm from requesting key when security is disabled
+ UBUNTU: upstream stable to v4.19.79, v5.3.6
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https://bugs.launchpad.net/bugs/1850870
Title:
Disco update: upstream stable patchset 2019-10-31
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