CVE-2026-89870
Received
Received - Intake
BaseFortify
Vulnerability report for CVE-2026-89870, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-16
Last updated on: 2026-09-16
Assigner: kernel.org
Description
Description
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 Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | 82e3a496eb56da0b9f29fdc5b63cedb3289e91de |
| Linux | Linux | bd01629315ffd5b63da91d0bd529a77d30e55028 |
| Linux | Linux | ff3357bffd9fb78f59762d8955afc7382a279079 |
| Linux | Linux | c1ba65100a359fe28cfe37e09e10c99f247cbf1e |
| Linux | Linux | 1e501ec38796f43e995731d1bcd4173cb1ccfce0 |
| Linux | Linux | 5.10.110 |
| Linux | Linux | 5.15.33 |
| Linux | Linux | 5.16.19 |
| Linux | Linux | 5.17.2 |
| Linux | Linux | 5.18 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
