Memory Leak in Linux Kernel's NFC Implementation

CVE-2023-53298

What is CVE-2023-53298?

A memory leak vulnerability exists in the NFC implementation of the Linux kernel. The callback context, responsible for handling APDUs to and from the secure element, may not be released in certain error scenarios, leading to a draining of memory resources. This occurs due to multiple error paths that bypass the function expected to free the associated cb_context. The issue has been mitigated in recent patches, which explicitly free the cb_context on the identified error paths to enhance system stability and security.

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