CVE-2026-43162
Awaiting Analysis Awaiting Analysis - Queue
Memory Leak in Linux Kernel Tegra Video Driver

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: tegra-video: Fix memory leak in __tegra_channel_try_format() The state object allocated by __v4l2_subdev_state_alloc() must be freed with __v4l2_subdev_state_free() when it is no longer needed. In __tegra_channel_try_format(), two error paths return directly after v4l2_subdev_call() fails, without freeing the allocated 'sd_state' object. This violates the requirement and causes a memory leak. Fix this by introducing a cleanup label and using goto statements in the error paths to ensure that __v4l2_subdev_state_free() is always called before the function returns.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-43162
EUVD
EUVD-2026-27721
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a memory leak in the Linux kernel's media subsystem, specifically in the tegra-video driver within the __tegra_channel_try_format() function.

The issue occurs because a state object allocated by __v4l2_subdev_state_alloc() is not properly freed when an error happens after a call to v4l2_subdev_call(). Two error paths return directly without freeing this allocated object, violating the requirement to free it with __v4l2_subdev_state_free().

The fix involves adding a cleanup label and using goto statements to ensure that the allocated state object is always freed before the function returns, preventing the memory leak.

Impact Analysis

This vulnerability can lead to a memory leak in the Linux kernel's media driver, which over time may cause increased memory usage and potentially degrade system performance or stability.

In environments where the affected driver is used heavily, this could result in resource exhaustion, possibly leading to crashes or denial of service conditions.

Mitigation Strategies

The vulnerability is a memory leak in the Linux kernel's tegra-video media driver caused by not freeing allocated state objects on error paths.

To mitigate this vulnerability immediately, you should update your Linux kernel to a version that includes the fix for CVE-2026-43162, where the error paths in __tegra_channel_try_format() have been corrected to properly free allocated memory.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-43162. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart