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Change History

In the Linux kernel, the following vulnerability has been resolved:

staging: bcm2835-camera: Initialise dev in v4l2_dev

Commit 42a2f6664e18 ("staging: vc04_services: Move global g_state to
vchiq_state") changed mmal_init to pass dev->v4l2_dev.dev to
vchiq_mmal_init, however nothing iniitialised dev->v4l2_dev, so we got
a NULL pointer dereference.

Set dev->v4l2_dev.dev during bcm2835_mmal_probe. The device pointer
could be passed into v4l2_device_register to set it, however that also
has other effects that would need additional changes.

https://git.kernel.org/stable/c/06753f49336ab161ea0e249a0720125b81b7b31b

https://git.kernel.org/stable/c/98698ca0e58734bc5c1c24e5bbc7429f981cd186

https://git.kernel.org/stable/c/b70bdd4923e8b8edbacde2af83ca337bb7005261