[Bug 1796379] Re: dumpe2fs crashed with SIGSEGV in e2p_is_null_uuid()

[Seth Arnold]

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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to e2fsprogs in Ubuntu.
https://bugs.launchpad.net/bugs/1796379

Title:
  dumpe2fs crashed with SIGSEGV in e2p_is_null_uuid()

Status in e2fsprogs package in Ubuntu:
  New

Bug description:
  when using gnome control center (no idea, if related)

  ProblemType: Crash
  DistroRelease: Ubuntu 18.10
  Package: e2fsprogs 1.44.4-2
  ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
  Uname: Linux 4.18.0-8-generic x86_64
  ApportVersion: 2.20.10-0ubuntu11
  Architecture: amd64
  Date: Fri Oct  5 19:27:27 2018
  ExecutablePath: /sbin/dumpe2fs
  InstallationDate: Installed on 2018-10-05 (0 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20181004)
  ProcCmdline: dumpe2fs -h /dev/sdc1
  SegvAnalysis:
   Segfault happened at: 0x7fa1b9836ffc <e2p_is_null_uuid+12>:	cmpb   $0x0,-0x1(%rdi)
   PC (0x7fa1b9836ffc) ok
   source "$0x0" ok
   destination "-0x1(%rdi)" (0x7ffcdb8f3000) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: e2fsprogs
  StacktraceTop:
   e2p_is_null_uuid () from /lib/x86_64-linux-gnu/libe2p.so.2
   e2p_uuid2str () from /lib/x86_64-linux-gnu/libe2p.so.2
   e2p_list_journal_super () from /lib/x86_64-linux-gnu/libe2p.so.2
   ?? ()
   ?? ()
  Title: dumpe2fs crashed with SIGSEGV in e2p_is_null_uuid()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/1796379/+subscriptions