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Change History

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

media: ipu3-imgu: Fix NULL pointer dereference in active selection access

What the IMGU driver did was that it first acquired the pointers to active
and try V4L2 subdev state, and only then figured out which one to use.

The problem with that approach and a later patch (see Fixes: tag) is that
as sd_state argument to v4l2_subdev_get_try_crop() et al is NULL, there is
now an attempt to dereference that.

Fix this.

Also rewrap lines a little.

https://git.kernel.org/stable/c/5265cc1202a31f7097691c3483a0d60d624424a5

https://git.kernel.org/stable/c/740717b756c17190dc2d2ad4c6de1e63f214e0c9

https://git.kernel.org/stable/c/b9eb3ab6f30bf32f7326909f17949ccb11bab514