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

[jlambrecht]

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)

[Marc Deslauriers (mdeslaur)]

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.