Linux Kernel Vulnerability Affecting ARM64 Architecture
CVE-2023-54322
What is CVE-2023-54322?
A flaw in the Linux kernel's ARM64 architecture relates to the incorrect handling of IRQ entries in relation to the call stack. The function filter_irq_stacks() aims to discard entries tied to IRQ events, yet fails in certain configurations, specifically when 'CONFIG_FUNCTION_GRAPH_TRACER' is not enabled. This omission results in the gic_handle_irq entry not being correctly identified, potentially leading to unintended deep call stack entries during scenarios where KASAN (Kernel Address Sanitizer) is enabled. These deep call stacks can contribute to system instability, causing warnings and limiting the system's overall operational capacity.
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Affected Version(s)
Linux 9a5ad7d0e3e1c6c0c11df89fbc5376f8aaf7a90f
Linux 9a5ad7d0e3e1c6c0c11df89fbc5376f8aaf7a90f < 0bd309f22663f3ee749bea0b6d70642c31a1c0a5
Linux 9a5ad7d0e3e1c6c0c11df89fbc5376f8aaf7a90f