CVE-2026-43162
media: tegra-video: Fix memory leak in __tegra_channel_try_format()
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.
INFO
Published Date :
May 6, 2026, 12:16 p.m.
Last Modified :
May 6, 2026, 1:07 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply the kernel patch to fix the memory leak.
- Ensure __v4l2_subdev_state_free() is always called.
- Update the Tegra video driver module.
References to Advisories, Solutions, and Tools
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CVE-2026-43162.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-43162 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-2026-43162
weaknesses.
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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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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 06, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/2dff8966a3a889dd9d248a7e15d963b4097efcc5 Added Reference https://git.kernel.org/stable/c/3ca2f09061736e72ef25eec2597d00f7f44094d3 Added Reference https://git.kernel.org/stable/c/43e5302d22334f1183dec3e0d5d8007eefe2817c Added Reference https://git.kernel.org/stable/c/6c6f419fa9c44a4b7149b0292e01bff47308ba14 Added Reference https://git.kernel.org/stable/c/ca921be7a1174d5d58b28f84b683c2c0079f18c5 Added Reference https://git.kernel.org/stable/c/d92e9a18f97a1d19d4c2ff81dcfbe43591f75b5a