This bug was fixed in the package linux - 5.4.0-42.46

---------------
linux (5.4.0-42.46) focal; urgency=medium

  * focal/linux: 5.4.0-42.46 -proposed tracker (LP: #1887069)

  * linux 4.15.0-109-generic network DoS regression vs -108 (LP: #1886668)
    - SAUCE: Revert "netprio_cgroup: Fix unlimited memory leak of v2 cgroups"

linux (5.4.0-41.45) focal; urgency=medium

  * focal/linux: 5.4.0-41.45 -proposed tracker (LP: #1885855)

  * Packaging resync (LP: #1786013)
    - update dkms package versions

  * CVE-2019-19642
    - kernel/relay.c: handle alloc_percpu returning NULL in relay_open

  * CVE-2019-16089
    - SAUCE: nbd_genl_status: null check for nla_nest_start

  * CVE-2020-11935
    - aufs: do not call i_readcount_inc()

  * ip_defrag.sh in net from ubuntu_kernel_selftests failed with 5.0 / 5.3 / 5.4
    kernel (LP: #1826848)
    - selftests: net: ip_defrag: ignore EPERM

  * Update lockdown patches (LP: #1884159)
    - SAUCE: acpi: disallow loading configfs acpi tables when locked down

  * seccomp_bpf fails on powerpc (LP: #1885757)
    - SAUCE: selftests/seccomp: fix ptrace tests on powerpc

  * Introduce the new NVIDIA 418-server and 440-server series, and update the
    current NVIDIA drivers (LP: #1881137)
    - [packaging] add signed modules for the 418-server and the 440-server
      flavours

 -- Khalid Elmously <khalid.elmou...@canonical.com>  Thu, 09 Jul 2020
19:50:26 -0400

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

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-11935

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https://bugs.launchpad.net/bugs/1876699

Title:
  add 16-bit width registers support for EEPROM at24 device

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Focal:
  Fix Released

Bug description:
  SRU For Bionic

  [Impact]
  Larger EEPROM devices that use 16-bit addresses couldn't be accessed.

  The i2c/smbus currently only support to access data with 8-bit width of
  address. In some larger device, such as larger EEPROM, it requires to
  access the address large than 0xff, so it needs to extend address space
  to 16-bit width.

  [Fix]
  This commit is derivated from below commit, and then modified and provided
  by customer
  https://patchwork.ozlabs.org/patch/545292/

  Unfortunately, this commit doesn't get into mainline in the end, so I migrate 
the commit to latest kernel and finally get it merged.
  https://lkml.org/lkml/2020/4/24/635

  [Test]
  Verified on Eurotech's platforms.

  [Regression Potential]
  Low, this patch only changes the behavior of the device which has 
AT24_FLAG_ADDR16 flag and change the page_size to 64 if the device name is 
24c256.

  =====================================
  SRU For Focal

  [Impact]
  Larger EEPROM devices that use 16-bit addresses couldn't be accessed.

  The i2c/smbus currently only support to access data with 8-bit width of
  address. In some larger device, such as larger EEPROM, it requires to
  access the address large than 0xff, so it needs to extend address space
  to 16-bit width.

  [Fix]
  Clear cherry pick from linux-next
  82f25bd73c0b regmap-i2c: add 16-bit width registers support

  [Test]
  Verified on Eurotech's platforms.

  [Regression Potential]
  Low, this patch provides new access functions for 16-bit registers,
  shouldn't affect any other devices which are already working well.

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