CVE-2026-68215
media: radio-si476x: Unregister v4l2_device on probe failure
Description
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.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Unregister V4L2 device in probe error path.
- Free controls before unregistering.
- Ensure si476x_radio_remove is called on failure.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68215.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68215 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68215
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68215 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68215 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '4ca9c9f12b1bc341a0a3bbbd2090fd182db53771', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '7ef9f1659404544a8dddd68842bafcb4a38197af', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '64cb15878b35e5574ff4f80a0b613a79e47867ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '730c235d7d2c80a401dac56b0f5066c889aa442d', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '436a693af04ffb889aaf87cb69ec1f2b21d3569c', 'versionType': 'git'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '4ca9c9f12b1bc341a0a3bbbd2090fd182db53771', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '7ef9f1659404544a8dddd68842bafcb4a38197af', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '64cb15878b35e5574ff4f80a0b613a79e47867ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '730c235d7d2c80a401dac56b0f5066c889aa442d', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '436a693af04ffb889aaf87cb69ec1f2b21d3569c', 'versionType': 'git'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '4ca9c9f12b1bc341a0a3bbbd2090fd182db53771', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '7ef9f1659404544a8dddd68842bafcb4a38197af', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '64cb15878b35e5574ff4f80a0b613a79e47867ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '730c235d7d2c80a401dac56b0f5066c889aa442d', 'versionType': 'git'}, {'status': 'affected', 'version': 'b879a9c2a755d4ddf9e685258de6435710fd2f03', 'lessThan': '436a693af04ffb889aaf87cb69ec1f2b21d3569c', 'versionType': 'git'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/radio/radio-si476x.c'], 'defaultStatus': 'affected'}] Added Description 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. Added Reference https://git.kernel.org/stable/c/436a693af04ffb889aaf87cb69ec1f2b21d3569c Added Reference https://git.kernel.org/stable/c/4ca9c9f12b1bc341a0a3bbbd2090fd182db53771 Added Reference https://git.kernel.org/stable/c/64cb15878b35e5574ff4f80a0b613a79e47867ba Added Reference https://git.kernel.org/stable/c/730c235d7d2c80a401dac56b0f5066c889aa442d Added Reference https://git.kernel.org/stable/c/7ef9f1659404544a8dddd68842bafcb4a38197af