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:

       v5.4.277 upstream stable release
       from git://git.kernel.org/

pinctrl: core: handle radix_tree_insert() errors in pinctrl_register_one_pin()
ext4: fix bug_on in __es_tree_search
Revert "selftests: mm: fix map_hugetlb failure on 64K page size systems"
Revert "net: bcmgenet: use RGMII loopback for MAC reset"
net: bcmgenet: keep MAC in reset until PHY is up
net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access
net: bcmgenet: synchronize use of bcmgenet_set_rx_mode()
net: bcmgenet: synchronize UMAC_CMD access
smb: client: fix potential OOBs in smb2_parse_contexts()
firmware: arm_scmi: Harden accesses to the reset domains
arm64: dts: qcom: Fix 'interrupt-map' parent address cells
btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
drm/amdgpu: Fix possible NULL dereference in 
amdgpu_ras_query_error_status_helper()
usb: typec: ucsi: displayport: Fix potential deadlock
serial: kgdboc: Fix NMI-safety problems from keyboard reset code
docs: kernel_include.py: Cope with docutils 0.21
Linux 5.4.277
UBUNTU: Upstream stable to v5.4.277

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

** Affects: linux (Ubuntu Focal)
     Importance: Medium
     Assignee: Manuel Diewald (diewald)
         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 Focal)
   Importance: Undecided
       Status: New

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

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

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

** Changed in: linux (Ubuntu Focal)
     Assignee: (unassigned) => Manuel Diewald (diewald)

** Description changed:

  
      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:
  
         v5.4.277 upstream stable release
         from git://git.kernel.org/
  
-             
+ pinctrl: core: handle radix_tree_insert() errors in pinctrl_register_one_pin()
+ ext4: fix bug_on in __es_tree_search
+ Revert "selftests: mm: fix map_hugetlb failure on 64K page size systems"
+ Revert "net: bcmgenet: use RGMII loopback for MAC reset"
+ net: bcmgenet: keep MAC in reset until PHY is up
+ net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access
+ net: bcmgenet: synchronize use of bcmgenet_set_rx_mode()
+ net: bcmgenet: synchronize UMAC_CMD access
+ smb: client: fix potential OOBs in smb2_parse_contexts()
+ firmware: arm_scmi: Harden accesses to the reset domains
+ arm64: dts: qcom: Fix 'interrupt-map' parent address cells
+ btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
+ drm/amdgpu: Fix possible NULL dereference in 
amdgpu_ras_query_error_status_helper()
+ usb: typec: ucsi: displayport: Fix potential deadlock
+ serial: kgdboc: Fix NMI-safety problems from keyboard reset code
+ docs: kernel_include.py: Cope with docutils 0.21
  Linux 5.4.277
- docs: kernel_include.py: Cope with docutils 0.21
- serial: kgdboc: Fix NMI-safety problems from keyboard reset code
- usb: typec: ucsi: displayport: Fix potential deadlock
- drm/amdgpu: Fix possible NULL dereference in 
amdgpu_ras_query_error_status_helper()
- btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
- arm64: dts: qcom: Fix 'interrupt-map' parent address cells
- firmware: arm_scmi: Harden accesses to the reset domains
- smb: client: fix potential OOBs in smb2_parse_contexts()
- net: bcmgenet: synchronize UMAC_CMD access
- net: bcmgenet: synchronize use of bcmgenet_set_rx_mode()
- net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access
- net: bcmgenet: keep MAC in reset until PHY is up
- Revert "net: bcmgenet: use RGMII loopback for MAC reset"
- Revert "selftests: mm: fix map_hugetlb failure on 64K page size systems"
- ext4: fix bug_on in __es_tree_search
- pinctrl: core: handle radix_tree_insert() errors in pinctrl_register_one_pin()
+ UBUNTU: Upstream stable to v5.4.277

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https://bugs.launchpad.net/bugs/2070179

Title:
  Focal update: v5.4.277 upstream stable release

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