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[Mathew Hodson <1939855@xxxxxxxxxxxxxxxxxx>]

** No longer affects: focal (Ubuntu)

** No longer affects: focal (Ubuntu Focal)

** Project changed: dellserver => ubuntu-translations

** No longer affects: ubuntu-translations

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

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

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https://bugs.launchpad.net/bugs/1939855

Title:
  [SRU] Ice driver causes the kernel to crash with Ubuntu 20.04.2 with
  ethtool specific register commands

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

Bug description:
  [Impact]

  When we run the command, ethtool -d <interface_name> with Intel cards (ice driver), the kernel crashes because of the ice driver.
  The same works fine with HWE kernel (5.11). Here, we do not see any crash.

  [FIXES]

  ice: Fix bad register reads
  The "ethtool -d" handler reads registers in the ice_regs_dump_list array
  and returns read values back to the userspace.

  commitID:  1fba4a8a92706c89716449b1aab1b6879f438d34

  https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-
  next.git/commit/drivers/net/ethernet/intel/ice?id=1fba4a8a92706c89716449b1aab1b6879f438d34

  [TESTING]

  Install Focal on a system with an E810 network device.
  Ensure the network device has an IP address and has connectivity
  Run ethtool -d <interface_name>
  Expected result: Prints a register dump for the specified network device

  [REGRESSION RISK]

  The regression risk is low

  [OTHER INFO]

  I have added the fix, built the kernel and tested the fix.

  https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/focal/+ref/e810_ethtool_fix_next

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