From: Matt Fleming <matt.fleming@xxxxxxxxx>
Subject: sh: fix format string bug in stack tracer
Kees reported the following error,
arch/sh/kernel/dumpstack.c: In function 'print_trace_address':
>> arch/sh/kernel/dumpstack.c:118:2: error: format not a string literal and no format arguments [-Werror=format-security]
Use the "%s" format so that it's impossible to interpret 'data' as a
format string.
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
Reported-by: Kees Cook <keescook@xxxxxxxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/kernel/dumpstack.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/sh/kernel/dumpstack.c~sh-fix-format-string-bug-in-stack-tracer arch/sh/kernel/dumpstack.c
--- a/arch/sh/kernel/dumpstack.c~sh-fix-format-string-bug-in-stack-tracer
+++ a/arch/sh/kernel/dumpstack.c
@@ -115,7 +115,7 @@ static int print_trace_stack(void *data,
*/
static void print_trace_address(void *data, unsigned long addr, int reliable)
{
- printk(data);
+ printk("%s", (char *)data);
printk_address(addr, reliable);
}
_
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html