fkie_cve-2022-50826
Vulnerability from fkie_nvd
Published
2025-12-30 13:15
Modified
2025-12-31 20:43
Severity ?
Summary
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().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5038ee677606106c91564f9c4557d808d14bad70
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/611d617bdb6c5d636a9861ec1c98e813fc8a5556
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc608edf7d45ba0c2ad14c06eccd66474fec7847
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa6bbb4894b9b947063c6ff90018a954c5f9f4b3
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipu3-imgu: Fix NULL pointer dereference in imgu_subdev_set_selection()\n\nCalling v4l2_subdev_get_try_crop() and v4l2_subdev_get_try_compose()\nwith a subdev state of NULL leads to a NULL pointer dereference. This\ncan currently happen in imgu_subdev_set_selection() when the state\npassed in is NULL, as this method first gets pointers to both the \"try\"\nand \"active\" states and only then decides which to use.\n\nThe same issue has been addressed for imgu_subdev_get_selection() with\ncommit 30d03a0de650 (\"ipu3-imgu: Fix NULL pointer dereference in active\nselection access\"). However the issue still persists in\nimgu_subdev_set_selection().\n\nTherefore, apply a similar fix as done in the aforementioned commit to\nimgu_subdev_set_selection(). To keep things a bit cleaner, introduce\nhelper functions for \"crop\" and \"compose\" access and use them in both\nimgu_subdev_set_selection() and imgu_subdev_get_selection()."
    }
  ],
  "id": "CVE-2022-50826",
  "lastModified": "2025-12-31T20:43:05.160",
  "metrics": {},
  "published": "2025-12-30T13:15:57.063",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5038ee677606106c91564f9c4557d808d14bad70"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/611d617bdb6c5d636a9861ec1c98e813fc8a5556"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dc608edf7d45ba0c2ad14c06eccd66474fec7847"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fa6bbb4894b9b947063c6ff90018a954c5f9f4b3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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