High 7.8Published Sep 16, 2026

CVE-2026-89870media: zoran: Avoid freeing a registered video_device twice

Updated under an hour ago (Oct 27, 2026, 9:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: media: zoran: Avoid freeing a registered video_device twice zoran_init_video_device() installs zoran_vdev_release() as the video_device release callback through zoran_template. After video_register_device() succeeds, video_unregister_device() drops the registered video_device reference and the V4L2 core eventually invokes that release callback, which kfree()s the video_device. zoran_exit_video_devices() called video_unregister_device() and then kfree(zr->video_dev), so device teardown could free the same video_device twice. Remove the direct kfree() and clear the cached pointer after unregistering. The pre-registration failure path keeps its manual free because the video_device was not registered there. This issue was found by a static analysis checker and confirmed by manual source review.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	82e3a496eb56da0b9f29fdc5b63cedb3289e91de builds before 3ad6cf27505017a6794f5f96c31218c2291e951b; from 82e3a496eb56da0b9f29fdc5b63cedb3289e91de before c4acac8cdc005b2d14b6cef5e215d264212857f3; 82e3a496eb56da0b9f29fdc5b63cedb3289e91de builds before 4d99d8d0d895489064783601a516bd45812fa992; from 82e3a496eb56da0b9f29fdc5b63cedb3289e91de before f1c4f3885df1f09bcab5296d86834d104f865e86; from 82e3a496eb56da0b9f29fdc5b63cedb3289e91de before 672dbccf4351370dad002d3c78dbb29ca1588f22; from 82e3a496eb56da0b9f29fdc5b63cedb3289e91de before 0735e0b5a96761a9ce277a238e834008ad92a0a5; bd01629315ffd5b63da91d0bd529a77d30e55028; ff3357bffd9fb78f59762d8955afc7382a279079; and 6 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b
https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3
https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992
https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86
https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22
https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.