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[Brian Murray <1875092@xxxxxxxxxxxxxxxxxx>]

The Eoan Ermine has reached end of life, so this bug will not be fixed
for that release

** Changed in: libseccomp (Ubuntu Eoan)
       Status: New => Won't Fix

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https://bugs.launchpad.net/bugs/1875092

Title:
  support v5.4 syscalls

Status in libseccomp package in Ubuntu:
  Fix Released
Status in libseccomp source package in Xenial:
  New
Status in libseccomp source package in Bionic:
  New
Status in libseccomp source package in Eoan:
  Won't Fix

Bug description:
  [Impact]

   * update libssecomp syscalls, for example current seccomp on xenial
  and up, cannot correctly filter calls for focal armhf chroots on v5.4
  kernels, due to new syscalls usage.

  [Test Case]

   * Boot v5.4 kernel
   * Use seccomp to try to resolve new syscall numbers

   * Rebuild snapd snap against bileto ppa with this change
   * Test that this rebuild snapd snap, can correctly launch confined python armhf interpreter on arm64 v5.4 kernel (i.e. uc20 raspi arm64 beta image)

  [Regression Potential]

   * The issue only impacts when one is running on a newer / hwe kernel,
  and tries to seccomp filter newer binaries that use new syscalls. No
  changes are made to any existing syscalls or apis.

  [Other Info]

   * Bileto PPA with this change is being prepared with this change.

  xenial: https://bileto.ubuntu.com/#/ticket/4041
  bionic: https://bileto.ubuntu.com/#/ticket/4040
  eoan: https://bileto.ubuntu.com/#/ticket/4039

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