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[Bug 1646581] [NEW] debsums spins on symlink cycle

 

Public bug reported:

Hello; debsums runs in an (apparently infinite) loop when it encounters
circular symlinks:

lrwxrwxrwx 1 root root 37 Feb  9  2016 /usr/share/doc/manpages-
posix/changelog.Debian.gz -> ../manpages-posix/changelog.Debian.gz


readlink("/usr/share/doc/manpages-posix/changelog.Debian.gz", "../manpages-posix/changelog.Debi"..., 4095) = 37
lstat("/usr/share/doc/manpages-posix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/share/doc/manpages-posix/changelog.Debian.gz", {st_mode=S_IFLNK|0777, st_size=37, ...}) = 0
readlink("/usr/share/doc/manpages-posix/changelog.Debian.gz", "../manpages-posix/changelog.Debi"..., 4095) = 37
lstat("/usr/share/doc/manpages-posix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/share/doc/manpages-posix/changelog.Debian.gz", {st_mode=S_IFLNK|0777, st_size=37, ...}) = 0
readlink("/usr/share/doc/manpages-posix/changelog.Debian.gz", "../manpages-posix/changelog.Debi"..., 4095) = 37
lstat("/usr/share/doc/manpages-posix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/share/doc/manpages-posix/changelog.Debian.gz", {st_mode=S_IFLNK|0777, st_size=37, ...}) = 0
readlink("/usr/share/doc/manpages-posix/changelog.Debian.gz", "../manpages-posix/changelog.Debi"..., 4095) = 37
lstat("/usr/share/doc/manpages-posix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/share/doc/manpages-posix/changelog.Debian.gz", {st_mode=S_IFLNK|0777, st_size=37, ...}) = 0
...

Thanks

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: debsums 2.1.2
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Dec  1 11:15:22 2016
InstallationDate: Installed on 2012-10-18 (1505 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
PackageArchitecture: all
SourcePackage: debsums
UpgradeStatus: Upgraded to xenial on 2016-04-30 (215 days ago)

** Affects: debsums (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1646581

Title:
  debsums spins on symlink cycle

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