Bug#872988: nvidia-driver-libs: sudden crash (segmentation fault at address 0x0) in /usr/lib/xorg/modules/drivers/nvidia_drv.so

[Luca Boccassi]

Control: tags -1 upstream

On Wed, 2017-08-23 at 12:38 +0200, Vincent Lefevre wrote:
> Package: nvidia-driver-libs
> Version: 375.82-1
> Severity: important
> 
> The X.Org X server suddenly crashed. The /var/log/Xorg.0.log.old
> contains:
> 
> [766695.267] (EE) 
> [766695.267] (EE) Backtrace:
> [766695.268] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4a)
> [0x555beba4dc7a]
> [766695.268] (EE) 1: /usr/lib/xorg/Xorg (0x555beb894000+0x1bda29)
> [0x555beba51a29]
> [766695.268] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0
> (0x7fba78998000+0x110c0) [0x7fba789a90c0]
> [766695.268] (EE) 3: /usr/lib/xorg/modules/drivers/nvidia_drv.so
> (0x7fba7321f000+0xb53e2) [0x7fba732d43e2]
> [766695.268] (EE) 4: /usr/lib/xorg/modules/drivers/nvidia_drv.so
> (0x7fba7321f000+0xbfdd8) [0x7fba732dedd8]
> [766695.268] (EE) 5: /usr/lib/xorg/modules/drivers/nvidia_drv.so
> (0x7fba7321f000+0x5e3f43) [0x7fba73802f43]
> [766695.268] (EE) 
> [766695.268] (EE) Segmentation fault at address 0x0
> [766695.268] (EE) 
> Fatal server error:
> [766695.268] (EE) Caught signal 11 (Segmentation fault). Server
> aborting

Looks like a null pointer deref?

Unfortunately it's in the binary blob, so there's nothing we can do.

I recommend to report it upstream on the support forum:

https://devtalk.nvidia.com/default/board/98/linux/

If the issue persists, as a workaround, you could try to install the
non-glvnd binaries, as different code paths might be exercised.

apt install libgl1-nvidia-glx libgl1-nvidia-glx:i386

This will remove the GLVND libraries. Omit the second one if you don't
have the i386 multiarch libraries installed.

-- 
Kind regards,
Luca Boccassi
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