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* [PATCH] powerpc: fsl_rio: Use snprintf() in fsl_rio_setup()
@ 2026-06-30 14:49 Thorsten Blum
  0 siblings, 0 replies; only message in thread
From: Thorsten Blum @ 2026-06-30 14:49 UTC (permalink / raw)
  To: Madhavan Srinivasan, Michael Ellerman, Nicholas Piggin,
	Christophe Leroy (CS GROUP), Kees Cook
  Cc: Thorsten Blum, linuxppc-dev, linux-kernel

While the current code works correctly, replace the unbounded sprintf()
with the safer snprintf() in fsl_rio_setup() to follow secure coding
best practices.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 arch/powerpc/sysdev/fsl_rio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index eb55dabb4748..077c03cd93e4 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -612,7 +612,7 @@ static int fsl_rio_setup(struct platform_device *dev)
 				kfree(port);
 				continue;
 		}
-		sprintf(port->name, "RIO mport %d", i);
+		snprintf(port->name, sizeof(port->name), "RIO mport %d", i);
 
 		priv->dev = &dev->dev;
 		port->dev.parent = &dev->dev;

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2026-06-30 14:49 [PATCH] powerpc: fsl_rio: Use snprintf() in fsl_rio_setup() Thorsten Blum

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