linux-kernel - Re: next-0519 on thinkpad x60: sound related? window manager crash

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1591624340.z01ejtod28.none@localhost>
Date:   Mon, 08 Jun 2020 09:53:30 -0400
From:   "Alex Xu (Hello71)" <alex_y_xu@...oo.ca>
To:     Christoph Hellwig <hch@....de>
Cc:     alsa-devel@...a-project.org, bp@...en8.de, hch@...radead.org,
        hpa@...or.com, linux-kernel@...r.kernel.org, mingo@...hat.com,
        Pavel Machek <pavel@....cz>, perex@...ex.cz,
        rientjes@...gle.com, tglx@...utronix.de, tiwai@...e.com,
        x86@...nel.org
Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash

Excerpts from Christoph Hellwig's message of June 8, 2020 2:19 am:
> Can you do a listing using gdb where this happens?
> 
> gdb vmlinux
> 
> l *(snd_pcm_hw_params+0x3f3)
> 
> ?
> 

(gdb) l *(snd_pcm_hw_params+0x3f3)
0xffffffff817efc85 is in snd_pcm_hw_params (.../linux/sound/core/pcm_native.c:749).
744             while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size)
745                     runtime->boundary *= 2;
746
747             /* clear the buffer for avoiding possible kernel info leaks */
748             if (runtime->dma_area && !substream->ops->copy_user)
749                     memset(runtime->dma_area, 0, runtime->dma_bytes);
750
751             snd_pcm_timer_resolution_change(substream);
752             snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
753