CVE-2026-68215

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: radio-si476x: Unregister v4l2_device on probe failure

si476x_radio_probe() registers radio->v4l2dev before allocating the V4L2 controls and before registering the video device. If any of those later steps fails, probe returns through the exit label after freeing only the control handler.

A failed probe does not call si476x_radio_remove(), so the v4l2_device_unregister() there is not reached. This leaves the parent device reference taken by v4l2_device_register() behind on the error path.

Unregister the V4L2 device in the probe error path after freeing the controls.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb879a9c2a755d4ddf9e685258de6435710fd2f03 < 4ca9c9f12b1bc341a0a3bbbd2090fd182db53771affected
LinuxLinuxb879a9c2a755d4ddf9e685258de6435710fd2f03 < 7ef9f1659404544a8dddd68842bafcb4a38197afaffected
LinuxLinuxb879a9c2a755d4ddf9e685258de6435710fd2f03 < 64cb15878b35e5574ff4f80a0b613a79e47867baaffected
LinuxLinuxb879a9c2a755d4ddf9e685258de6435710fd2f03 < 730c235d7d2c80a401dac56b0f5066c889aa442daffected
LinuxLinuxb879a9c2a755d4ddf9e685258de6435710fd2f03 < 436a693af04ffb889aaf87cb69ec1f2b21d3569caffected
LinuxLinux3.10affected
LinuxLinux0 < 3.10unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References