Out-of-place Decryption Vulnerability in Linux Kernel Products

CVE-2026-43033

What is CVE-2026-43033?

A vulnerability has been identified in the Linux kernel's cryptographic implementation concerning out-of-place decryption processes. This issue arises during the operation of decrypting data where the source and destination are distinct. Specifically, the high-order sequence bits do not need to be placed at the end of the destination buffer. Instead, the bits can be appropriately rearranged to enhance both efficiency and integrity in the decryption process. This presents potential implications for data integrity and security within systems utilizing the affected versions of the Linux kernel. As a best practice, it is recommended to upgrade to newer kernel versions where this issue has been addressed.

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