[patch] kgdb: strlen() doesn't count the terminator

From: Dan Carpenter
Date: Thu Dec 09 2010 - 06:28:50 EST


This is an off by one because strlen() doesn't count the null
terminator. We strcpy() these strings into an array of size
MAX_CONFIG_LEN.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 59c118c..27dc463 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -988,7 +988,7 @@ static void kgdbts_run_tests(void)

static int kgdbts_option_setup(char *opt)
{
- if (strlen(opt) > MAX_CONFIG_LEN) {
+ if (strlen(opt) >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdbts: config string too long\n");
return -ENOSPC;
}
diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c
index 3374618..ec1748b 100644
--- a/drivers/serial/kgdboc.c
+++ b/drivers/serial/kgdboc.c
@@ -130,7 +130,7 @@ static void kgdboc_unregister_kbd(void)

static int kgdboc_option_setup(char *opt)
{
- if (strlen(opt) > MAX_CONFIG_LEN) {
+ if (strlen(opt) >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdboc: config string too long\n");
return -ENOSPC;
}
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