cve-2026-31629

About this tag
CVE-2026-31629 is a Linux kernel vulnerability in the NFC LLCP receive path caused by a missing return statement. This flaw leads to a double release, reference count underflow, and potential use-after-free in privileged kernel code. While the affected NFC subsystem is niche, the vulnerability underscores how edge hardware support can create real-world Linux security exposure. Discussions on WindowsForum cover the technical details of the bug, its exploitation potential, and its broader implications for kernel memory safety. The tag serves as a resource for understanding this specific CVE and the class of missing-return bugs in privileged code.

  1. CVE-2026-31629: Missing return in Linux NFC LLCP can trigger double release UAF

    CVE-2026-31629 is a small Linux kernel flaw with a familiar lesson: in privileged code, a missing return can become a memory-safety vulnerability. The issue sits in the kernel’s NFC LLCP receive path, where two functions clean up a closed socket but then continue executing and repeat the...
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    • cve-2026-31629 linux kernel security memory safety nfc llcp
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    • Forum: Security Alerts