media: imx-jpeg: fix a bug of accessing array out of bounds

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: media: imx-jpeg: fix a bug of accessing array out of bounds When error occurs in parsing jpeg, the slot isn't acquired yet, it may be the default value MXC_MAX_SLOTS. If the driver access the slot using the incorrect slot number, it will access array out of bounds. The result is the driver will change num_domains, which follows slot_data in struct mxc_jpeg_dev. Then the driver won't detach the pm domain at rmmod, which will lead to kernel panic when trying to insmod again.

References

• https://git.kernel.org/stable/c/02f9f97d54ffc85b50ad77f5b1f3c8f69cd17747
• https://git.kernel.org/stable/c/20c8b90430c5d6c4a3936eaa7c35aac670581487
• https://git.kernel.org/stable/c/e209e6db2e527db6a93b14c2deedf969caca78fc
• https://git.kernel.org/stable/c/97558d170a1236280407e8d29a7d095d2c2ed554