[Bug 2071891] Re: tcpdump segv if -Z and -w is specified

Ghadi Rahme 2071891 at bugs.launchpad.net
Wed Sep 10 15:44:09 UTC 2025


** Changed in: tcpdump (Ubuntu Noble)
   Importance: Undecided => High

** Changed in: tcpdump (Ubuntu Plucky)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/2071891

Title:
  tcpdump segv if -Z and -w is specified

Status in tcpdump package in Ubuntu:
  Fix Released
Status in tcpdump source package in Noble:
  Confirmed
Status in tcpdump source package in Oracular:
  Won't Fix
Status in tcpdump source package in Plucky:
  Confirmed
Status in tcpdump source package in Questing:
  Fix Released
Status in tcpdump package in Debian:
  Fix Released

Bug description:
  Reproduce:

  As root (sudo sh) do:

  # tcpdump -Z root -ni lo -w /tmp/lo.pcap
  Segmentation fault (core dumped)

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: tcpdump 4.99.4-3ubuntu4
  ProcVersionSignature: Ubuntu 6.8.0-36.36-generic 6.8.4
  Uname: Linux 6.8.0-36-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: XFCE
  Date: Thu Jul  4 08:47:14 2024
  InstallationDate: Installed on 2024-04-25 (69 days ago)
  InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm
   XDG_RUNTIME_DIR=<set>
  SourcePackage: tcpdump
  UpgradeStatus: No upgrade log present (probably fresh install)

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