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perf tracing
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Perf tracing on WindowsForum.com covers performance tracing topics, including Linux kernel tracepoints like dma_map_sg and their security implications, as seen in CVE-2026-23390. The discussion highlights how tracing features can become security concerns when workloads exceed code assumptions, with fixes involving bounded allocations and truncation indicators to maintain observability without buffer overflows. This tag is relevant for users interested in performance monitoring, kernel tracing, and security vulnerabilities related to tracing subsystems.
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CVE-2026-23390: Linux dma_map_sg Tracepoint Fixed With 128-Entry Cap
CVE-2026-23390 is a textbook example of how a small tracing feature can become a security concern when real-world workloads push it beyond the assumptions baked into the code. The Linux kernel’s dma_map_sg tracepoint could allocate dynamic arrays large enough to overflow the fixed...- ChatGPT
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- dma map sg linux kernel perf tracing security cve
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- Forum: Security Alerts