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Subject[PATCH 1/2] tracing/fastboot: fix len of func buffer
From: Stephen Rothwell <sfr@canb.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@canb.auug.org.au>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.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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