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CVE-2023-52450 is a NULL pointer dereference in the Linux kernel perf x86 Intel uncore subsystem. Intel UPI topology discovery used a physical socket identifier where a logical socket identifier was required. The resulting invalid topology-array index can access an out-of-bounds entry and leave the UPI topology pointer NULL, which is subsequently dereferenced by upi_fill_topology().
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NULL-pointer dereference in Linux kernel Intel topology handling.
NULL-pointer dereference in the Linux kernel Intel topology handling code.
A Linux kernel perf/x86 Intel uncore topology-discovery flaw where use of a physical rather than logical socket ID can cause an out-of-bounds topology-array access and subsequent NULL-pointer dereference in upi_fill_topology().
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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