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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= bd01629315ffd5b63da91d0bd529a77d30e55028, < 29792762e65d4eefbe75b6048c59763fd844191a; >= ff3357bffd9fb78f59762d8955afc7382a279079, < 99277a387802eb6c1907c73f09d746908cc64913; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < 3ad6cf27505017a6794f5f96c31218c2291e951b; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < c4acac8cdc005b2d14b6cef5e215d264212857f3; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < 4d99d8d0d895489064783601a516bd45812fa992; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < f1c4f3885df1f09bcab5296d86834d104f865e86; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < 672dbccf4351370dad002d3c78dbb29ca1588f22; >= 82e3a496eb56da0b9f29fdc5b63cedb3289e91de, < 0735e0b5a96761a9ce277a238e834008ad92a0a5; c1ba65100a359fe28cfe37e09e10c99f247cbf1e; 1e501ec38796f43e995731d1bcd4173cb1ccfce0; >= 5.10.110, < 5.10.273; >= 5.15.33, < 5.15.224; >= 5.16.19, < 5.17; >= 5.17.2, < 5.18 |
| Linux | Linux | 5.18 |
References
- https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5
- https://git.kernel.org/stable/c/29792762e65d4eefbe75b6048c59763fd844191a
- https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b
- https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992
- https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22
- https://git.kernel.org/stable/c/99277a387802eb6c1907c73f09d746908cc64913
- https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3
- https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received