[Bug 1980516] [NEW] brltty crashed with SIGSEGV in runSpeechDriverThread()

[corrado venturini]

Public bug reported:

brltty crashing many times a day

ProblemType: Crash
DistroRelease: Ubuntu 22.10
Package: brltty 6.4-6ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.22.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CrashCounter: 1
Date: Fri Jul  1 13:33:37 2022
ExecutablePath: /usr/bin/brltty
InstallationDate: Installed on 2022-05-23 (38 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220512)
JournalErrors:
 lug 01 13:33:37 hostname gnome-shell[8177]: setup_framebuffers: assertion 'width > 0' failed
 lug 01 13:33:39 hostname systemd[1]: brltty.service: Main process exited, code=killed, status=11/SEGV
 lug 01 13:33:39 hostname systemd[1]: brltty.service: Failed with result 'signal'.
ProcCmdline: /bin/brltty --no-daemon
RebootRequiredPkgs: Error: path contained symlinks.
SegvAnalysis:
 Segfault happened at: 0x55a452b3ce48 <runSpeechDriverThread+152>:	mov    0x20(%rbp),%rdi
 PC (0x55a452b3ce48) ok
 source "0x20(%rbp)" (0x00000020) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: brltty
StacktraceTop:
 runSpeechDriverThread ()
 ?? ()
 start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
 clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Title: brltty crashed with SIGSEGV in runSpeechDriverThread()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
separator:

** Affects: brltty (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-crash kinetic need-amd64-retrace

** Information type changed from Private to Public

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Title:
   brltty crashed with SIGSEGV in runSpeechDriverThread()

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