CVE-2022-49630

Summary

CVE-2022-49630 is a recently identified vulnerability in the Linux kernel. It affects the tcp subsystem, where a data race was discovered in the handling of sysctl_tcp_ecn_fallback. This issue allows for concurrent modifications to the variable while it is being read, leading to potential inconsistencies or incorrect behavior. To mitigate this issue, the Linux kernel team has implemented the READ_ONCE() macro to ensure proper synchronization, preventing any data corruption or other unintended consequences. This vulnerability could potentially be exploited to gain unauthorized access or cause denial-of-service conditions, making its resolution an important step towards maintaining the security and stability of Linux systems.

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