CVE-2022-50826

published 2025-12-30

CVE-2022-50826: In the Linux kernel, the following vulnerability has been resolved: ipu3-imgu: Fix NULL pointer dereference in imgu_subdev_set_selection() Calling…

Priority P4 22

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

ipu3-imgu: Fix NULL pointer dereference in imgu_subdev_set_selection()

Calling v4l2_subdev_get_try_crop() and v4l2_subdev_get_try_compose()
with a subdev state of NULL leads to a NULL pointer dereference. This
can currently happen in imgu_subdev_set_selection() when the state
passed in is NULL, as this method first gets pointers to both the "try"
and "active" states and only then decides which to use.

The same issue has been addressed for imgu_subdev_get_selection() with
commit 30d03a0de650 ("ipu3-imgu: Fix NULL pointer dereference in active
selection access"). However the issue still persists in
imgu_subdev_set_selection().

Therefore, apply a similar fix as done in the aforementioned commit to
imgu_subdev_set_selection(). To keep things a bit cleaner, introduce
helper functions for "crop" and "compose" access and use them in both
imgu_subdev_set_selection() and imgu_subdev_get_selection().

Affected

12 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.1.4-1 (bookworm)	linux 6.1.4-1 (bookworm)
linux	linux	—	—
linux	linux	>= 0d346d2a6f54f06f36b224fd27cd6eafe8c83be9 < fa6bbb4894b9b947063c6ff90018a954c5f9f4b3	fa6bbb4894b9b947063c6ff90018a954c5f9f4b3
linux	linux	>= 0d346d2a6f54f06f36b224fd27cd6eafe8c83be9 < 611d617bdb6c5d636a9861ec1c98e813fc8a5556	611d617bdb6c5d636a9861ec1c98e813fc8a5556
linux	linux	>= 0d346d2a6f54f06f36b224fd27cd6eafe8c83be9 < 5038ee677606106c91564f9c4557d808d14bad70	5038ee677606106c91564f9c4557d808d14bad70
linux	linux	>= 0d346d2a6f54f06f36b224fd27cd6eafe8c83be9 < dc608edf7d45ba0c2ad14c06eccd66474fec7847	dc608edf7d45ba0c2ad14c06eccd66474fec7847
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 5.14.0 < 5.15.87	5.15.87
linux	linux_kernel	>= 5.16.0 < 6.0.18	6.0.18
linux	linux_kernel	>= 6.1.0 < 6.1.4	6.1.4

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