Dangling Pointer Vulnerability in Linux Kernel XFS Module

CVE-2026-43063

What is CVE-2026-43063?

A vulnerability has been identified in the XFS filesystem module of the Linux kernel, where a failure during the recovery process can lead to dereferencing a dangling pointer. Specifically, when the xlog_recovery_iget functions encounter an error, they do not assign a valid pointer to the @ip variable. Consequently, any subsequent attempts to release this pointer can cause instability and potential exploit pathways. This flaw underscores the importance of proper pointer management in kernel code to maintain system integrity.

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