[Bug 1988398] Re: crash due to incomplete AVX check

[Launchpad Bug Tracker]

This bug was fixed in the package gnutls28 - 3.7.7-2ubuntu2

---------------
gnutls28 (3.7.7-2ubuntu2) kinetic; urgency=medium

  * Fix Segmentation Fault due to misdetected Intel AVX support
    (LP: #1988398)

 -- Gregor Jasny <gjasny at googlemail.com>  Thu, 01 Sep 2022 07:42:53
+0100

** Changed in: gnutls28 (Ubuntu Kinetic)
       Status: Fix Committed => Fix Released

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Title:
  crash due to incomplete AVX check

Status in gnutls28 package in Ubuntu:
  Fix Released
Status in gnutls28 source package in Jammy:
  Triaged
Status in gnutls28 source package in Kinetic:
  Fix Released

Bug description:
  Hello,

  gnutls 3.7.3-4ubuntu1.1 does not properly check for AVX support. On
  VMs that disable AVX / XSAVE but still set the AVX cpuid capability
  processes that use gnutls are crashing with an illegal instruction
  error.

  For details see:
  https://gitlab.com/gnutls/gnutls/-/issues/1282#note_991427169

  Attached you'll find the debdiff which adds 
  https://gitlab.com/gnutls/gnutls/-/commit/8ff391fa011e02c88b0d099061ca62e88ab68011

  I locally built the package and verified that the error on my VM is gone. Please consider including this patch into jammy. Upstream acknowledged that this patch is sufficient to fix the bug:
  https://gitlab.com/gnutls/gnutls/-/merge_requests/1631#note_1084762091

  Thanks,
  Gregor

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