Public bug reported:
Binary package hint: lib64asound2
STEPS TO REPRODUCE
Run valgrind on Firefox and visit a page with <video>, on Kubuntu x86_64.
==23797== Conditional jump or move depends on uninitialised value(s)
==23797== at 0x82AC52A: snd_pcm_direct_shm_create_or_connect
(pcm_direct.c:122)
==23797== by 0x82A6E1F: snd_pcm_dmix_open (pcm_dmix.c:854)
==23797== by 0x82A77E8: _snd_pcm_dmix_open (pcm_dmix.c:1173)
==23797== by 0x8279A63: snd_pcm_open_conf (pcm.c:2115)
==23797== by 0x827A0B6: snd_pcm_open_noupdate (pcm.c:2153)
==23797== by 0x827A12F: snd_pcm_open_named_slave (pcm.c:2240)
==23797== by 0x82B0402: _snd_pcm_softvol_open (pcm_local.h:761)
==23797== by 0x8279A63: snd_pcm_open_conf (pcm.c:2115)
==23797== by 0x827A16E: snd_pcm_open_named_slave (pcm.c:2242)
==23797== by 0x8292D2C: _snd_pcm_plug_open (pcm_local.h:761)
==23797== by 0x8279A63: snd_pcm_open_conf (pcm.c:2115)
==23797== by 0x827A16E: snd_pcm_open_named_slave (pcm.c:2242)
==23797== by 0x82ADEF6: _snd_pcm_asym_open (pcm_asym.c:112)
==23797== by 0x8279A63: snd_pcm_open_conf (pcm.c:2115)
==23797== by 0x827A16E: snd_pcm_open_named_slave (pcm.c:2242)
==23797== by 0x829A289: _snd_pcm_empty_open (pcm_empty.c:103)
==23797== by 0x8279A63: snd_pcm_open_conf (pcm.c:2115)
==23797== by 0x827A0B6: snd_pcm_open_noupdate (pcm.c:2153)
==23797== by 0x164CF571: sa_stream_open (sydney_audio_alsa.c:137)
==23797== by 0x1649DFD1: nsAudioStream::Init(int, int,
nsAudioStream::SampleFormat) (nsAudioStream.cpp:91)
==23797== by 0x164A0B9E: nsOggDecodeStateMachine::OpenAudioStream()
(nsOggDecoder.cpp:748)
==23797== by 0x164A0BEC: nsOggDecodeStateMachine::StartAudio()
(nsOggDecoder.cpp:766)
==23797== by 0x164A0C0B: nsOggDecodeStateMachine::StartPlayback()
(nsOggDecoder.cpp:781)
==23797== by 0x164A0CE0: nsOggDecodeStateMachine::PlayFrame()
(nsOggDecoder.cpp:666)
==23797== by 0x164A1D56: nsOggDecodeStateMachine::Run()
(nsOggDecoder.cpp:1018)
==23797== by 0x58167A7: nsThread::ProcessNextEvent(int, int*)
(nsThread.cpp:510)
==23797== by 0x57C16C3: NS_ProcessNextEvent_P(nsIThread*, int)
(nsThreadUtils.cpp:230)
==23797== by 0x5816FB0: nsThread::ThreadFunc(void*) (nsThread.cpp:254)
==23797== by 0x5E9B0B6: _pt_root (ptthread.c:221)
==23797== by 0x4E2E3F6: start_thread (in /lib/libpthread-2.7.so)
==23797== by 0x8D78B3C: clone (in /lib/libc-2.7.so)
==23797== Uninitialised value was created by a stack allocation
==23797== at 0x82AC460: snd_pcm_direct_shm_create_or_connect
(pcm_direct.c:92)
==23797==
** Affects: alsa-lib (Ubuntu)
Importance: Undecided
Status: New
--
valgrind "Conditional jump or move depends on uninitialised value(s)" in
snd_pcm_direct_shm_create_or_connect
https://bugs.launchpad.net/bugs/339042
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