This bug is awaiting verification that the linux-azure-
fde-6.8/6.8.0-1041.48~22.04.1 kernel in -proposed solves the problem.
Please test the kernel and update this bug with the results. If the
problem is solved, change the tag 'verification-needed-jammy-linux-
azure-fde-6.8' to 'verification-done-jammy-linux-azure-fde-6.8'. If the
problem still exists, change the tag 'verification-needed-jammy-linux-
azure-fde-6.8' to 'verification-failed-jammy-linux-azure-fde-6.8'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-azure-fde-6.8-v2 
verification-needed-jammy-linux-azure-fde-6.8

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/2122719

Title:
  azure: backport "cifs: fix pagecache leak when do writepages"

Status in linux-azure package in Ubuntu:
  Fix Committed
Status in linux-azure source package in Noble:
  Fix Released

Bug description:
  BugLink: https://bugs.launchpad.net/bugs/2122719

  [Impact]

  A memory leak which was introduced in the smb.ko module by commit
  f3dc1bdb6b0b ("cifs: Fix writeback data corruption") is causing
  hangups on VMs due to memory starvation. This introduces a high risk
  of data corruption for users running the 6.8 Azure kernel.

  [Fix]

  Backport the fix:

  https://lore.kernel.org/linux-
  cifs/[email protected]/

  to the n:azure tree.

  [Test plan]

  Build tested only; Microsoft will validate the bug fix.

  [Where problems could occur]

  Issues with this patch could cause hangs/lockups during CIFS writeback
  operations, particularly in systems with a high CPU count.

  [Other info]
  SF #00418307

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