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:

       v5.15.52 upstream stable release
       from git://git.kernel.org/

tick/nohz: unexport __init-annotated tick_nohz_full_setup()
xfs: use kmem_cache_free() for kmem_cache objects
xfs: punch out data fork delalloc blocks on COW writeback failure
xfs: Fix the free logic of state in xfs_attr_node_hasname
xfs: remove all COW fork extents when remounting readonly
xfs: check sb_meta_uuid for dabuf buffer recovery
xfs: prevent UAF in xfs_log_item_in_current_chkpt
xfs: only bother with sync_filesystem during readonly remount
powerpc/ftrace: Remove ftrace init tramp once kernel init is complete
fs: add is_idmapped_mnt() helper
fs: move mapping helpers
fs: tweak fsuidgid_has_mapping()
fs: account for filesystem mappings
docs: update mapping documentation
fs: use low-level mapping helpers
fs: remove unused low-level mapping helpers
fs: port higher-level mapping helpers
fs: add i_user_ns() helper
fs: support mapped mounts of mapped filesystems
fs: fix acl translation
fs: account for group membership
rtw88: 8821c: support RFE type4 wifi NIC
rtw88: rtw8821c: enable rfe 6 devices
net: mscc: ocelot: allow unregistered IP multicast flooding to CPU
io_uring: fix not locked access to fixed buf table
Linux 5.15.52
UBUNTU: Upstream stable to v5.15.52

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

** Affects: linux (Ubuntu Jammy)
     Importance: Medium
     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 Jammy)
   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 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:
+        v5.15.52 upstream stable release
+        from git://git.kernel.org/
  
-        v5.15.52 upstream stable release
-        from git://git.kernel.org/
+ tick/nohz: unexport __init-annotated tick_nohz_full_setup()
+ xfs: use kmem_cache_free() for kmem_cache objects
+ xfs: punch out data fork delalloc blocks on COW writeback failure
+ xfs: Fix the free logic of state in xfs_attr_node_hasname
+ xfs: remove all COW fork extents when remounting readonly
+ xfs: check sb_meta_uuid for dabuf buffer recovery
+ xfs: prevent UAF in xfs_log_item_in_current_chkpt
+ xfs: only bother with sync_filesystem during readonly remount
+ powerpc/ftrace: Remove ftrace init tramp once kernel init is complete
+ fs: add is_idmapped_mnt() helper
+ fs: move mapping helpers
+ fs: tweak fsuidgid_has_mapping()
+ fs: account for filesystem mappings
+ docs: update mapping documentation
+ fs: use low-level mapping helpers
+ fs: remove unused low-level mapping helpers
+ fs: port higher-level mapping helpers
+ fs: add i_user_ns() helper
+ fs: support mapped mounts of mapped filesystems
+ fs: fix acl translation
+ fs: account for group membership
+ rtw88: 8821c: support RFE type4 wifi NIC
+ rtw88: rtw8821c: enable rfe 6 devices
+ net: mscc: ocelot: allow unregistered IP multicast flooding to CPU
+ io_uring: fix not locked access to fixed buf table
+ Linux 5.15.52
+ UBUNTU: Upstream stable to v5.15.52

** Changed in: linux (Ubuntu)
       Status: Confirmed => Invalid

** Changed in: linux (Ubuntu Jammy)
       Status: New => In Progress

** Changed in: linux (Ubuntu Jammy)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Jammy)
     Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)

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https://bugs.launchpad.net/bugs/1986724

Title:
  Jammy update: v5.15.52 upstream stable release

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  In Progress

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 following upstream
         stable patches should be included in the Ubuntu kernel:

         v5.15.52 upstream stable release
         from git://git.kernel.org/

  tick/nohz: unexport __init-annotated tick_nohz_full_setup()
  xfs: use kmem_cache_free() for kmem_cache objects
  xfs: punch out data fork delalloc blocks on COW writeback failure
  xfs: Fix the free logic of state in xfs_attr_node_hasname
  xfs: remove all COW fork extents when remounting readonly
  xfs: check sb_meta_uuid for dabuf buffer recovery
  xfs: prevent UAF in xfs_log_item_in_current_chkpt
  xfs: only bother with sync_filesystem during readonly remount
  powerpc/ftrace: Remove ftrace init tramp once kernel init is complete
  fs: add is_idmapped_mnt() helper
  fs: move mapping helpers
  fs: tweak fsuidgid_has_mapping()
  fs: account for filesystem mappings
  docs: update mapping documentation
  fs: use low-level mapping helpers
  fs: remove unused low-level mapping helpers
  fs: port higher-level mapping helpers
  fs: add i_user_ns() helper
  fs: support mapped mounts of mapped filesystems
  fs: fix acl translation
  fs: account for group membership
  rtw88: 8821c: support RFE type4 wifi NIC
  rtw88: rtw8821c: enable rfe 6 devices
  net: mscc: ocelot: allow unregistered IP multicast flooding to CPU
  io_uring: fix not locked access to fixed buf table
  Linux 5.15.52
  UBUNTU: Upstream stable to v5.15.52

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