CVE-2026-89870media: zoran: Avoid freeing a registered video_device twice
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No exploitation reported and no EPSS estimate yet.
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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
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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
- 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.