{"id":"CVE-2026-89870","published":"2026-09-16T11:16:55.153","lastModified":"2026-09-16T15:18:14.187","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: zoran: Avoid freeing a registered video_device twice\n\nzoran_init_video_device() installs zoran_vdev_release() as the\nvideo_device release callback through zoran_template. After\nvideo_register_device() succeeds, video_unregister_device() drops the\nregistered video_device reference and the V4L2 core eventually invokes\nthat release callback, which kfree()s the video_device.\n\nzoran_exit_video_devices() called video_unregister_device() and then\nkfree(zr->video_dev), so device teardown could free the same\nvideo_device twice.\n\nRemove the direct kfree() and clear the cached pointer after\nunregistering. The pre-registration failure path keeps its manual free\nbecause the video_device was not registered there.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5","tags":[]},{"url":"https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b","tags":[]},{"url":"https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992","tags":[]},{"url":"https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22","tags":[]},{"url":"https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3","tags":[]},{"url":"https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}