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systemcrash
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Nov 12, 2025
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The buffer 'res' was uninitialized before being passed to scanlist(), which could lead to garbage data in scan results. This patch ensures the buffer is zeroed out using memset before use. Signed-off-by: limao-cpu <maolihanbo@gmail.com>
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The buffer
resinrpc_iwinfo_scan()was previously uninitialized before being passed toiw->scanlist(). If the scan result was shorter than previous data, or not fully written, residual data could lead to garbage or incorrect output.This patch adds an explicit
memset(res, 0, sizeof(res));before the scan to ensure clean and consistent output, especially during repeated scans or partial data writes.Tested on OpenWrt with multiple interface scans to confirm stability.