Kernel Crash Due to Synthetic Event Misconfiguration in Linux
CVE-2026-23088
What is CVE-2026-23088?
A critical issue in the Linux kernel arises when a crash occurs while utilizing synthetic events with stacktrace fields. Specifically, when a synthetic event leverages an existing field from another event that includes a stacktrace, enabling these events can lead to a kernel crash. Incorrect handling of dynamic arrays and field retrieval during event execution exacerbates this issue, indicating a need for immediate remediation to avoid potential system outages and instability.

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Affected Version(s)
Linux 00cf3d672a9dd409418647e9f98784c339c3ff63 < 98ecbfb2598c9c7ca755a29f402da9d36c057077
Linux 00cf3d672a9dd409418647e9f98784c339c3ff63 < 327af07dff6ab5650b21491eb4f69694999ff3d1
Linux 00cf3d672a9dd409418647e9f98784c339c3ff63 < 3b90d099efa2b67239bd3b3dc3521ec584261748