This bug is awaiting verification that the 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-
groovy' to 'verification-done-groovy'. If the problem still exists,
change the tag 'verification-needed-groovy' to 'verification-failed-
groovy'.

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: verification-needed-groovy

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1914668

Title:
  Exploitable vulnerabilities in AF_VSOCK implementation

Status in linux package in Ubuntu:
  Fix Committed
Status in linux-hwe-5.8 package in Ubuntu:
  New
Status in linux-oem-5.6 package in Ubuntu:
  Fix Committed
Status in linux-riscv package in Ubuntu:
  Fix Committed
Status in linux-hwe-5.8 source package in Focal:
  In Progress
Status in linux source package in Groovy:
  Fix Committed
Status in linux source package in Hirsute:
  Fix Committed

Bug description:
  https://www.openwall.com/lists/oss-security/2021/02/04/5

  The following mainline patch is required for all kernels >= v5.8:
  {focal hwe-5.8, groovy, hirsute}:

  [linux] c518adafa39f vsock: fix the race conditions in multi-transport
  support

  or [linux-5.10-y] 55d900415b81 vsock: fix the race conditions in
  multi-transport support

  
  [Impact]

   * Patches an exploitable vulnerability.

  [Test Case]

   * See disclosure article.

  [Regression Potential]

   * Low: straightforward race condition fix; upstream cherry-pick.

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