[Bug 1955426] Re: kernel: [ 4383.133516] dhclient[465531]: segfault at ffffffffffffff80 ip 00007f1c5b268f3d sp 00007f1c5ad9a888 error 5 in libc.so.6[7f1c5b0f5000+194000]

[Marc Deslauriers]

Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug.  I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.

** Information type changed from Private Security to Public

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Title:
  kernel: [ 4383.133516] dhclient[465531]: segfault at ffffffffffffff80
  ip 00007f1c5b268f3d sp 00007f1c5ad9a888 error 5 in
  libc.so.6[7f1c5b0f5000+194000]

Status in isc-dhcp package in Ubuntu:
  New

Bug description:
  
  dhclient does not obtain a lease on boot and requires to be restarted to obtain a lease

  
  Dec 20 12:50:49 mymachine kernel: [ 4383.133516] dhclient[465531]: segfault at ffffffffffffff80 ip 00007f1c5b268f3d sp 00007f1c5ad9a888 error 5 in libc.so.6[7f1c5b0f5000+194000]
  Dec 20 12:50:49 mymachine kernel: [ 4383.133528] Code: f8 77 c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 89 f8 48 89 fa c5 f9 ef c0 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 33 01 00 00 <c5> fd 74 0f c5 fd d7 c1 85 c0 74 57 f3 0f bc c0 c5 f8 77 c3 66 66

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: isc-dhcp-common 4.4.1-2.3ubuntu1
  ProcVersionSignature: Ubuntu 5.13.0-22.22-generic 5.13.19
  Uname: Linux 5.13.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu71
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Mon Dec 20 20:17:06 2021
  InstallationDate: Installed on 2021-09-16 (95 days ago)
  InstallationMedia: Zorin-OS 16 Core 64bit
  SourcePackage: isc-dhcp
  UpgradeStatus: Upgraded to impish on 2021-12-03 (17 days ago)

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