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[Bug 1624037] [NEW] Xenial update to v4.4.21 stable release

 

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 v4.4.21 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the v4.4.21 stable release shall be
applied:

Revert "i40e: fix: do not sleep in netdev_ops"
fs: Check for invalid i_uid in may_follow_link()
netfilter: x_tables: check for size overflow
ext4: validate that metadata blocks do not overlap superblock
ext4: fix xattr shifting when expanding inodes
ext4: fix xattr shifting when expanding inodes part 2
ext4: properly align shifted xattrs when expanding inodes
ext4: avoid deadlock when expanding inode size
ext4: avoid modifying checksum fields directly during checksum verification
block: Fix race triggered by blk_set_queue_dying()
block: make sure a big bio is split into at most 256 bvecs
cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
s390/sclp_ctl: fix potential information leak with /dev/sclp
drm/radeon: fix radeon_move_blit on 32bit systems
drm: Reject page_flip for !DRIVER_MODESET
drm/msm: fix use of copy_from_user() while holding spinlock
ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup
xfs: fix superblock inprogress check
timekeeping: Cap array access in timekeeping_debug
timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
lustre: remove unused declaration
wrappers for ->i_mutex access
ovl: don't copy up opaqueness
ovl: remove posix_acl_default from workdir
ovl: listxattr: use strnlen()
ovl: fix workdir creation
ubifs: Fix assertion in layout_in_gaps()
bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two.
vhost/scsi: fix reuse of &vq->iov[out] in response
x86/apic: Do not init irq remapping if ioapic is disabled
uprobes: Fix the memcg accounting
crypto: caam - fix IV loading for authenc (giv)decryption
ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
ALSA: firewire-tascam: accessing to user space outside spinlock
ALSA: fireworks: accessing to user space outside spinlock
ALSA: rawmidi: Fix possible deadlock with virmidi registration
ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
ALSA: hda - Enable subwoofer on Dell Inspiron 7559
ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
ALSA: timer: fix NULL pointer dereference on memory allocation failure
scsi: fix upper bounds check of sense key in scsi_sense_key_string()
metag: Fix atomic_*_return inline asm constraints
cpufreq: Fix GOV_LIMITS handling for the userspace governor
hwrng: exynos - Disable runtime PM on probe failure
regulator: anatop: allow regulator to be in bypass mode
lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs
Linux 4.4.21

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu Xenial)
     Importance: Undecided
         Status: New


** Tags: kernel-stable-tracking-bug

** Tags added: kernel-stable-tracking-bug

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** 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 v4.4.21 upstream stable
+        patch set is now available. It should be included in the Ubuntu
+        kernel as well.
  
-     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 v4.4.21 upstream stable
-        patch set is now available. It should be included in the Ubuntu
-        kernel as well.
+        git://git.kernel.org/
  
-        git://git.kernel.org/
+     TEST CASE: TBD
  
-     TEST CASE: TBD
+        The following patches from the v4.4.21 stable release shall be
+ applied:
  
-        The following patches from the v4.4.21 stable release shall be
- applied:
+ Revert "i40e: fix: do not sleep in netdev_ops"
+ fs: Check for invalid i_uid in may_follow_link()
+ netfilter: x_tables: check for size overflow
+ ext4: validate that metadata blocks do not overlap superblock
+ ext4: fix xattr shifting when expanding inodes
+ ext4: fix xattr shifting when expanding inodes part 2
+ ext4: properly align shifted xattrs when expanding inodes
+ ext4: avoid deadlock when expanding inode size
+ ext4: avoid modifying checksum fields directly during checksum verification
+ block: Fix race triggered by blk_set_queue_dying()
+ block: make sure a big bio is split into at most 256 bvecs
+ cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
+ s390/sclp_ctl: fix potential information leak with /dev/sclp
+ drm/radeon: fix radeon_move_blit on 32bit systems
+ drm: Reject page_flip for !DRIVER_MODESET
+ drm/msm: fix use of copy_from_user() while holding spinlock
+ ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup
+ xfs: fix superblock inprogress check
+ timekeeping: Cap array access in timekeeping_debug
+ timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
+ lustre: remove unused declaration
+ wrappers for ->i_mutex access
+ ovl: don't copy up opaqueness
+ ovl: remove posix_acl_default from workdir
+ ovl: listxattr: use strnlen()
+ ovl: fix workdir creation
+ ubifs: Fix assertion in layout_in_gaps()
+ bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two.
+ vhost/scsi: fix reuse of &vq->iov[out] in response
+ x86/apic: Do not init irq remapping if ioapic is disabled
+ uprobes: Fix the memcg accounting
+ crypto: caam - fix IV loading for authenc (giv)decryption
+ ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
+ ALSA: firewire-tascam: accessing to user space outside spinlock
+ ALSA: fireworks: accessing to user space outside spinlock
+ ALSA: rawmidi: Fix possible deadlock with virmidi registration
+ ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
+ ALSA: hda - Enable subwoofer on Dell Inspiron 7559
+ ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
+ ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
+ ALSA: timer: fix NULL pointer dereference on memory allocation failure
+ scsi: fix upper bounds check of sense key in scsi_sense_key_string()
+ metag: Fix atomic_*_return inline asm constraints
+ cpufreq: Fix GOV_LIMITS handling for the userspace governor
+ hwrng: exynos - Disable runtime PM on probe failure
+ regulator: anatop: allow regulator to be in bypass mode
+ lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs
+ Linux 4.4.21

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https://bugs.launchpad.net/bugs/1624037

Title:
  Xenial update to v4.4.21 stable release

Status in linux package in Ubuntu:
  New
Status in linux source package in Xenial:
  New

Bug description:
  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 v4.4.21 upstream stable
         patch set is now available. It should be included in the Ubuntu
         kernel as well.

         git://git.kernel.org/

      TEST CASE: TBD

         The following patches from the v4.4.21 stable release shall be
  applied:

  Revert "i40e: fix: do not sleep in netdev_ops"
  fs: Check for invalid i_uid in may_follow_link()
  netfilter: x_tables: check for size overflow
  ext4: validate that metadata blocks do not overlap superblock
  ext4: fix xattr shifting when expanding inodes
  ext4: fix xattr shifting when expanding inodes part 2
  ext4: properly align shifted xattrs when expanding inodes
  ext4: avoid deadlock when expanding inode size
  ext4: avoid modifying checksum fields directly during checksum verification
  block: Fix race triggered by blk_set_queue_dying()
  block: make sure a big bio is split into at most 256 bvecs
  cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
  s390/sclp_ctl: fix potential information leak with /dev/sclp
  drm/radeon: fix radeon_move_blit on 32bit systems
  drm: Reject page_flip for !DRIVER_MODESET
  drm/msm: fix use of copy_from_user() while holding spinlock
  ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup
  xfs: fix superblock inprogress check
  timekeeping: Cap array access in timekeeping_debug
  timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
  lustre: remove unused declaration
  wrappers for ->i_mutex access
  ovl: don't copy up opaqueness
  ovl: remove posix_acl_default from workdir
  ovl: listxattr: use strnlen()
  ovl: fix workdir creation
  ubifs: Fix assertion in layout_in_gaps()
  bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two.
  vhost/scsi: fix reuse of &vq->iov[out] in response
  x86/apic: Do not init irq remapping if ioapic is disabled
  uprobes: Fix the memcg accounting
  crypto: caam - fix IV loading for authenc (giv)decryption
  ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
  ALSA: firewire-tascam: accessing to user space outside spinlock
  ALSA: fireworks: accessing to user space outside spinlock
  ALSA: rawmidi: Fix possible deadlock with virmidi registration
  ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
  ALSA: hda - Enable subwoofer on Dell Inspiron 7559
  ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
  ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
  ALSA: timer: fix NULL pointer dereference on memory allocation failure
  scsi: fix upper bounds check of sense key in scsi_sense_key_string()
  metag: Fix atomic_*_return inline asm constraints
  cpufreq: Fix GOV_LIMITS handling for the userspace governor
  hwrng: exynos - Disable runtime PM on probe failure
  regulator: anatop: allow regulator to be in bypass mode
  lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs
  Linux 4.4.21

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