mythbuntu-bugs team mailing list archive

[Dan Rollo <1168236@xxxxxxxxxxxxxxxxxx>]

*** This bug is a security vulnerability ***

Private security bug reported:

Every time I start this machine, I get an error about mythcommflag
crashing. This only started after the most recent updates where applied.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: mythtv-backend 2:0.26.0+fixes.20130327.69cd78b-0ubuntu0mythbuntu1 [origin: LP-PPA-mythbuntu-0.26]
ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
Uname: Linux 3.2.0-40-generic x86_64
.var.log.mythtv.mythavtest.log:
 
.var.log.mythtv.mythccextractor.log:
 
.var.log.mythtv.mythjobqueue.log:
 
.var.log.mythtv.mythlcdserver.log:
 
.var.log.mythtv.mythmediaserver.log:
 
.var.log.mythtv.mythshutdown.log:
 
.var.log.mythtv.mythutil.log:
 
.var.log.mythtv.mythwelcome.log:
 
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CrashDB: mythbuntu
Date: Thu Apr 11 04:54:32 2013
ExecutablePath: /usr/bin/mythcommflag
InstallationMedia: Mythbuntu 12.04.1 "Precise Pangolin" - Release amd64 (20120818.1)
Installed_mythtv_dbg: 0.0
MarkForUpload: True
ProcCmdline: /usr/bin/mythcommflag -j 101 --noprogress --verbose general --loglevel info --syslog local7
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fc11f7ee999:	mov    0x8(%r14),%rcx
 PC (0x7fc11f7ee999) ok
 source "0x8(%r14)" (0x300010100000109) not located in a known VMA region (needed readable region)!
 destination "%rcx" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 memalign () from /lib/x86_64-linux-gnu/libc.so.6
 posix_memalign () from /lib/x86_64-linux-gnu/libc.so.6
 av_malloc () from /usr/lib/libmythavutil.so.51
Title: mythcommflag crashed with SIGSEGV in memalign()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

** Affects: mythbuntu
     Importance: Undecided
         Status: New


** Tags: amd64 apport-crash need-amd64-retrace precise third-party-packages

** Information type changed from Private to Private Security

-- 
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https://bugs.launchpad.net/bugs/1168236

Title:
  mythcommflag crashed with SIGSEGV in memalign()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Every time I start this machine, I get an error about mythcommflag
  crashing. This only started after the most recent updates where
  applied.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-backend 2:0.26.0+fixes.20130327.69cd78b-0ubuntu0mythbuntu1 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
  Uname: Linux 3.2.0-40-generic x86_64
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Thu Apr 11 04:54:32 2013
  ExecutablePath: /usr/bin/mythcommflag
  InstallationMedia: Mythbuntu 12.04.1 "Precise Pangolin" - Release amd64 (20120818.1)
  Installed_mythtv_dbg: 0.0
  MarkForUpload: True
  ProcCmdline: /usr/bin/mythcommflag -j 101 --noprogress --verbose general --loglevel info --syslog local7
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fc11f7ee999:	mov    0x8(%r14),%rcx
   PC (0x7fc11f7ee999) ok
   source "0x8(%r14)" (0x300010100000109) not located in a known VMA region (needed readable region)!
   destination "%rcx" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   ?? () from /lib/x86_64-linux-gnu/libc.so.6
   ?? () from /lib/x86_64-linux-gnu/libc.so.6
   memalign () from /lib/x86_64-linux-gnu/libc.so.6
   posix_memalign () from /lib/x86_64-linux-gnu/libc.so.6
   av_malloc () from /usr/lib/libmythavutil.so.51
  Title: mythcommflag crashed with SIGSEGV in memalign()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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