Memory Leak in imx_pd_connector_get_modes in drm/imx
Summary
GSD-2022-1001361: drm/imx: Fix memory leak in imx_pd_connector_get_modes. Affects Kernel versions >= 76ecd9c9fb24b014a6f33fbb1287ede3be12158b, < bc23c327e1a23cc3555fa1e86288e13288515442. No fix is published. How to fix ↓
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Background
The drm/imx module is a component of the Linux Kernel that provides support for graphics and display functionality on i.MX SoCs. It includes drivers for various display connectors, such as HDMI and LVDS. The imx_pd_connector_get_modes function is responsible for retrieving the supported display modes for a given connector. However, a memory leak vulnerability has been identified in this function.
Vulnerability Detail
The memory leak vulnerability in imx_pd_connector_get_modes allows an attacker to exhaust system memory by repeatedly calling the function without releasing the allocated memory. This can lead to a denial of service (DoS) condition, as the system may become unresponsive or crash due to insufficient memory. The vulnerability was introduced in version v4.8 of the Linux Kernel and is fixed in version v5.16.20.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.16.20 or later. This can be done by downloading the latest kernel source code from the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and compiling it for the target system. Alternatively, users can wait for their Linux distribution to provide an updated package containing the fixed version of the kernel.
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Workaround
There is no known workaround for this vulnerability. It is necessary to apply the fix by updating the Linux Kernel.
Conclusion
The memory leak vulnerability in imx_pd_connector_get_modes can result in a denial of service (DoS) condition by exhausting system memory. It is crucial to update the Linux Kernel to version v5.16.20 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a denial of service (DoS) condition, as the system may become unresponsive or crash due to memory exhaustion.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the tool will analyze it for any known vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is still recommended to apply the fix as soon as possible to prevent any potential attacks.
No, this vulnerability requires local access to the system in order to exploit it.
The only mitigation for this vulnerability is to apply the fix by updating the Linux Kernel to the fixed version.
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