Ubuntu
man-db package

man crashed with SIGSEGV

Bug #218336 reported by avinas on 2008-04-16

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	man-db (Fedora)	Fix Released	Undecided	redhat-bugs #694332
	man-db (Ubuntu)	Fix Released	Medium	Colin Watson

Bug Description

Binary package hint: man-db

I was installing updates.

ProblemType: Crash
Architecture: i386
Date: Mon Apr 14 16:31:13 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/lib/man-db/man
NonfreeKernelModules: nvidia
Package: man-db 2.5.1-3
PackageArchitecture: i386
ProcCmdline: man chown
ProcEnviron:
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
LANG=en_GB.UTF-8
Signal: 11
SourcePackage: man-db
Stacktrace:
#0 0x08057481 in ?? ()
#1 0x00000000 in ?? ()
StacktraceTop:
?? ()
?? ()
ThreadStacktrace:
.
Thread 1 (process 6846):
#0 0x08057481 in ?? ()
#1 0x00000000 in ?? ()
Title: man crashed with SIGSEGV
Uname: Linux 2.6.24-16-generic i686
UserGroups: adm audio cdrom dialout dip floppy lpadmin plugdev pulse pulse-access pulse-rt scanner users vboxusers video
SegvAnalysis:
Segfault happened at: 0x8057481 <geteuid@plt+51997>: mov -0x4(%esi,%eax,1),%edx
PC (0x08057481) ok
source "-0x4(%esi,%eax,1)" (0x00000020) not located in a known VMA region (needed readable region)!
destination "%edx" ok
SegvReason: reading NULL VMA

See original description

Tags:

Related branches

lp:debian/man-db

Revision history for this message

avinas (avinas17) wrote on 2008-04-16:

Dependencies.txt Edit (661 bytes, text/plain; charset="utf-8")
Disassembly.txt Edit (816 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (2.3 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (680 bytes, text/plain; charset="utf-8")
Registers.txt Edit (429 bytes, text/plain; charset="utf-8")

Revision history for this message

avinas (avinas17) wrote on 2008-04-16:

I was installing updates. I got crashed man, F-spot, Firefox, Apport...

Revision history for this message

Apport retracing service (apport) wrote on 2008-05-10: Symbolic stack trace

Stacktrace.txt (retraced) Edit (2.1 KiB, text/plain)

StacktraceTop:_fini () from /usr/lib/libz.so.1
_dl_fini () from /lib/ld-linux.so.2
exit () from /lib/tls/i686/cmov/libc.so.6
error_tail () from /lib/tls/i686/cmov/libc.so.6
error () from /lib/tls/i686/cmov/libc.so.6

Revision history for this message

Apport retracing service (apport) wrote on 2008-05-10: Symbolic threaded stack trace

ThreadStacktrace.txt (retraced) Edit (2.2 KiB, text/plain)

Changed in man-db:
importance:	Undecided → Medium

Kees Cook (kees) on 2009-09-16

description:

updated

Revision history for this message

In Red Hat Bugzilla #694332, Adam (adam-redhat-bugs) wrote on 2011-04-07:

abrt version: 1.1.17
architecture: x86_64
Attached file: backtrace, 5244 bytes
cmdline: man lround
component: man-db
Attached file: coredump, 1376256 bytes
crash_function: main
executable: /usr/bin/man
kernel: 2.6.35.11-83.fc14.x86_64
package: man-db-2.5.7-7.fc14
rating: 4
reason: Process /usr/bin/man was killed by signal 11 (SIGSEGV)
release: Fedora release 14 (Laughlin)
How to reproduce: 1. Close the window.
time: 1302135671
uid: 500

Revision history for this message

In Red Hat Bugzilla #694332, Adam (adam-redhat-bugs) wrote on 2011-04-07:

Created attachment 490452
File: backtrace

Revision history for this message

In Red Hat Bugzilla #694332, Colin (colin-redhat-bugs) wrote on 2011-04-07:

Thanks for your report! I've fixed this for man-db 2.6.0:

Thu Apr 7 12:46:34 BST 2011 Colin Watson <email address hidden>

        * lib/cleanup.c (do_cleanups): Set tos and nslots to 0 before
          freeing stack, in case do_cleanups_sigsafe is called again from a
          signal handler (Fedora bug #694332).
        * NEWS: Document this.

http://bazaar.launchpad.net/~cjwatson/man-db/trunk/revision/1338

Revision history for this message

Colin Watson (cjwatson) wrote on 2011-04-09:

Thanks for your report, and sorry for the delay. This is also https://bugzilla.redhat.com/show_bug.cgi?id=694332, which will be fixed in man-db 2.6.0.

visibility:	private → public
Changed in man-db (Ubuntu):
status:	New → Fix Committed
assignee:	nobody → Colin Watson (cjwatson)

Revision history for this message

In Red Hat Bugzilla #694332, Ivana (ivana-redhat-bugs) wrote on 2011-04-21:

#10

Thanks, now the rawhide version (man-db-2.6.0.2-1) fixes this problem.

Revision history for this message

Launchpad Janitor (janitor) wrote on 2011-04-30:

This bug was fixed in the package man-db - 2.6.0.2-1

---------------
man-db (2.6.0.2-1) unstable; urgency=low

  * New upstream release:
    - Fix a segfault when scanning links to empty pages (closes: #622104).
    - Once we've seen at least one record in a page's NAME section, ignore
      any further records that don't include a whatis description, as they
      tend to be noise.
  * Remove unnecessary .la files (closes: #622443).

man-db (2.6.0.1-1) unstable; urgency=low

  * New upstream release, fixing test failures in 2.6.0 (closes: #621867):
    - Ensure that the target of a symlink or .so chain is always recorded as
      a real page.
    - Read a user-specified configuration file even if HOME is unset.

man-db (2.6.0-1) unstable; urgency=low

  * New upstream release:
    - Search the full manpath when expanding .so directives in manual pages.
      As part of this, '.so name.1' should now work as well as '.so
      man1/name.1' (closes: #503472, LP: #411534).
    - Handle roff named glyphs and perldoc strings in NAME sections (closes:
      #601025).
    - Don't start a pager if stdout is not a tty.
    - Allow passing multiple sections to whatis and apropos (closes:
      #571285).
    - Provide byte positions in manconv errors (closes: #562789).
    - Make mandb error output neater when stderr is not a tty.
    - Fix failure to display manual pages in some encodings when installed
      setuid.
    - Don't ignore SIGPIPE while forking iconv (closes: #597756).
    - Remove obsolete subdirectories of cat directories (closes: #558804).
    - If mandb sees that A is a symlink to B, it should never store a whatis
      reference for B (closes: #204249).
    - Print commas in roman rather than bold (thanks, David Prévot; closes:
      #600002).
    - Consider .PD requests as paragraph breaks (closes: #611012).
    - Reset SIGPIPE to SIG_DFL on startup, to avoid noisy output in the
      event that mandb was started from a context where SIGPIPE was ignored.
    - SECTION entries in a user configuration file now override those in the
      system configuration file, rather than appending to them.
    - If the user asked for an explicit section, sort exact matches first.
    - Rewrite all remaining subprocess handling in terms of libpipeline,
      especially some crash-prone code in catman (LP: #27738).
    - The default less prompt now includes "(press h for help or q to quit)"
      to help novices find their way around
      (http://brainstorm.ubuntu.com/idea/25975).
    - Fix a segfault when 'man -K' tries to display certain pages.
    - Fix a segfault in some situations when processes are killed by SIGHUP,
      SIGINT, or SIGTERM (LP: #218336).
  * Avoid unnecessary metadata writes to /var/cache/man when doing recursive
    chown (thanks, Iustin Pop; closes: #619726).
-- Ubuntu Archive Auto-Sync <email address hidden> Sat, 30 Apr 2011 13:16:26 +0000

This bug was fixed in the package man-db - 2.6.0.2-1

---------------
man-db (2.6.0.2-1) unstable; urgency=low

man-db (2.6.0.1-1) unstable; urgency=low

man-db (2.6.0-1) unstable; urgency=low

* New upstream release:
    - Search the full manpath when expanding .so directives in manual pages.
      As part of this, '.so name.1' should now work as well as '.so
      man1/name.1' (closes: #503472, LP: #411534).
    - Handle roff named glyphs and perldoc strings in NAME sections (closes:
      #601025).
    - Don't start a pager if stdout is not a tty.
    - Allow passing multiple sections to whatis and apropos (closes:
      #571285).
    - Provide byte positions in manconv errors (closes: #562789).
    - Make mandb error output neater when stderr is not a tty.
    - Fix failure to display manual pages in some encodings when installed
      setuid.
    - Don't ignore SIGPIPE while forking iconv (closes: #597756).
    - Remove obsolete subdirectories of cat directories (closes: #558804).
    - If mandb sees that A is a symlink to B, it should never store a whatis
      reference for B (closes: #204249).
    - Print commas in roman rather than bold (thanks, David Prévot; closes:
      #600002).
    - Consider .PD requests as paragraph breaks (closes: #611012).
    - Reset SIGPIPE to SIG_DFL on startup, to avoid noisy output in the
      event that mandb was started from a context where SIGPIPE was ignored.
    - SECTION entries in a user configuration file now override those in the
      system configuration file, rather than appending to them.
    - If the user asked for an explicit section, sort exact matches first.
    - Rewrite all remaining subprocess handling in terms of libpipeline,
      especially some crash-prone code in catman (LP: #27738).
    - The default less prompt now includes "(press h for help or q to quit)"
      to help novices find their way around
      (http://brainstorm.ubuntu.com/idea/25975).
    - Fix a segfault when 'man -K' tries to display certain pages.
    - Fix a segfault in some situations when processes are killed by SIGHUP,
      SIGINT, or SIGTERM (LP: #218336).
  * Avoid unnecessary metadata writes to /var/cache/man when doing recursive
    chown (thanks, Iustin Pop; closes: #619726).
 -- Ubuntu Archive Auto-Sync <archive@ubuntu.com>   Sat,  30 Apr 2011 13:16:26 +0000

Changed in man-db (Ubuntu):
status:	Fix Committed → Fix Released

Bug Watch Updater (bug-watch-updater) on 2017-10-27

Changed in man-db (Fedora):
importance:	Unknown → Undecided
status:	Unknown → Fix Released

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man crashed with SIGSEGV

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