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Subject[PATCH 1/4] kgdboc,kgdbts: strlen() doesn't count the terminator
Date
From: Dan Carpenter <error27@gmail.com>

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@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
drivers/misc/kgdbts.c | 2 +-
drivers/tty/serial/kgdboc.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

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/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 25a8bc5..87e7e6c 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -131,7 +131,7 @@ 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;
}
--
1.7.1


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