Use After Free Vulnerability in Tegrakernel from NVIDIA
CVE-2022-50192
What is CVE-2022-50192?
A use-after-free vulnerability exists in the Linux kernel's interaction with the tegra20-slink driver. This issue occurs after the spi_unregister_master() function is called, resulting in the reference count for the master device being reduced to zero, leading to a scenario where the corresponding device data is freed. This mismanagement can be exploited during the device interaction with the tegra20-slink driver, potentially causing instability and security concerns. The vulnerability is mitigated by ensuring that the master is obtained before it is unregistered and released properly only after use.
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Affected Version(s)
Linux 26c863418221344b1cfb8e6c11116b2b81144281 < 415b4ce61308f24583912d887772dfcbf97f1d20
Linux 26c863418221344b1cfb8e6c11116b2b81144281 < 800c7767e05d29656713e04532823a752e57e037
Linux 26c863418221344b1cfb8e6c11116b2b81144281 < 67f77172644260482fdafc03b6025847944701e5