linux-kernel - [PATCH 1/2] tracing/fastboot: fix len of func buffer

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Message-ID: <49412D50.8090102@gmail.com>
Date:	Thu, 11 Dec 2008 16:10:08 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] tracing/fastboot: fix len of func buffer

From: Stephen Rothwell <sfr@...b.auug.org.au>

Impact: fix possible stack overrun

This is a port of a patch included in the mainline (KSYM_SYMBOL_LEN fixes).
The current func len is not large enough to contain the max symbol len, the
right size must be KSYM_SYMBOL_LEN.

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
diff --git a/include/trace/boot.h b/include/trace/boot.h
index 6b54537..3ec58b4 100644
--- a/include/trace/boot.h
+++ b/include/trace/boot.h
@@ -9,7 +9,7 @@
  */
 struct boot_trace_call {
 	pid_t			caller;
-	char			func[KSYM_NAME_LEN];
+	char			func[KSYM_SYMBOL_LEN];
 };
 
 /*
@@ -17,7 +17,7 @@ struct boot_trace_call {
  * while it returns.
  */
 struct boot_trace_ret {
-	char			func[KSYM_NAME_LEN];
+	char			func[KSYM_SYMBOL_LEN];
 	int				result;
 	unsigned long long	duration;		/* nsecs */
 };
-- 
1.6.0.4

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