Ubuntu
pulseaudio package

pulseaudio crashed with SIGSEGV in XFreeGC() from XCloseDisplay() from pa_x11_wrapper_unref()

Bug #1941962 reported by Anas
22
This bug affects 2 people
Affects Status Importance Assigned to Milestone
X.Org X server
Fix Released
Unknown
libx11 (Ubuntu)
Fix Released
Medium
Unassigned
pulseaudio (Ubuntu)
Invalid
Medium
Unassigned

Bug Description

https://errors.ubuntu.com/problem/52094416ad4b4132ebf639ec8530fed1fdbac584

crash

ProblemType: Crash
DistroRelease: Ubuntu 21.10
Package: pulseaudio 1:15.0+dfsg1-1ubuntu2
Uname: Linux 5.13.13-xanmod1-cacule x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu68
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: anasc 1719 F.... pulseaudio
 /dev/snd/pcmC0D0p: anasc 1719 F...m pulseaudio
CasperMD5CheckResult: pass
Date: Sat Aug 28 21:00:59 2021
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2021-08-26 (2 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210824)
ProcCmdline: /usr/bin/pulseaudio --daemonize=no --log-target=journal
SegvAnalysis:
 Segfault happened at: 0x7fbcc9d6a8a4 <XFreeGC+100>: mov %edx,0x4(%rax)
 PC (0x7fbcc9d6a8a4) ok
 source "%edx" ok
 destination "0x4(%rax)" (0x00000004) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: pulseaudio
StacktraceTop:
 XFreeGC () from /lib/x86_64-linux-gnu/libX11.so.6
 XCloseDisplay () from /lib/x86_64-linux-gnu/libX11.so.6
 pa_x11_wrapper_unref () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-15.0.so
 module_x11_publish_LTX_pa__done () from /usr/lib/pulse-15.0+dfsg1/modules/module-x11-publish.so
 ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-15.0.so
Title: pulseaudio crashed with SIGSEGV in XFreeGC()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
dmi.bios.date: 02/05/2021
dmi.bios.release: 15.14
dmi.bios.vendor: Insyde
dmi.bios.version: F.14
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 86E2
dmi.board.vendor: HP
dmi.board.version: 95.36
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 95.36
dmi.modalias: dmi:bvnInsyde:bvrF.14:bd02/05/2021:br15.14:efr95.36:svnHP:pnHPPavilionLaptop15-cs3xxx:pvrType1ProductConfigId:sku5SU52EA#BH4:rvnHP:rn86E2:rvr95.36:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Laptop 15-cs3xxx
dmi.product.sku: 5SU52EA#BH4
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
separator:

See original description
Revision history for this message
Anas (anas-blinux) wrote :
information type: Private → Public
Apport retracing service (apport)
tags: removed: need-amd64-retrace
Daniel van Vugt (vanvugt)
summary: - pulseaudio crashed with SIGSEGV in XFreeGC()
+ pulseaudio crashed with SIGSEGV in XFreeGC() from XCloseDisplay() from
+ pa_x11_wrapper_unref()
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in pulseaudio (Ubuntu):
status: New → Confirmed
Daniel van Vugt (vanvugt)
description: updated
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 XFreeGC (dpy=dpy@entry=0x55eb54e02470, gc=0x55eb54c41400) at ../../src/FreeGC.c:43
 XCloseDisplay (dpy=0x55eb54e02470) at ../../src/ClDisplay.c:56
 x11_wrapper_free (w=0x55eb54dfdaf0) at ../src/pulsecore/x11wrap.c:254
 pa_x11_wrapper_unref (w=0x55eb54dfdaf0) at ../src/pulsecore/x11wrap.c:296
 module_x11_publish_LTX_pa__done (m=<optimized out>) at ../src/modules/x11/module-x11-publish.c:238

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : StacktraceSource.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in pulseaudio (Ubuntu):
importance: Undecided → Medium
Revision history for this message
Igor V. Kovalenko (i-garrison) wrote :

I believe this crash is caused by this libx11 issue https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/139

Revision history for this message
Igor V. Kovalenko (i-garrison) wrote :

Just a heads-up, fix for libx11 issue 139 is now merged upstream https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/84

Daniel van Vugt (vanvugt)
Changed in libx11 (Ubuntu):
status: New → Fix Committed
importance: Undecided → Medium
Changed in pulseaudio (Ubuntu):
status: Confirmed → Invalid
tags: added: fixed-in-1.7.3 fixed-upstream
Sebastien Bacher (seb128)
tags: added: desktop-lts-wishlist
Bug Watch Updater (bug-watch-updater)
Changed in xorg-server:
status: Unknown → Fix Released
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Fixed in Ubuntu 22.04 and later.

Changed in libx11 (Ubuntu):
status: Fix Committed → Fix Released
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