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| author | Dileep Katta <dileep.katta@linaro.org> | 2015-02-13 14:33:42 +0800 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-02-25 17:47:02 +0100 |
| commit | e874207134e9d2d5958636f7f32b60e5441ab320 (patch) | |
| tree | 429c3cd7b1bf2eea826bc752da895878061cf18e | |
| parent | 9e4b510d40310bf46e09f4edd0a0b6356213df47 (diff) | |
fastboot: Correct fastboot_fail and fastboot_okay strings
If the string is copied without NULL termination using strncpy(),
then strncat() on the next line, may concatenate the string after
some stale (or random) data, if the response string was not
zero-initialized.
Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
| -rw-r--r-- | common/fb_mmc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/common/fb_mmc.c b/common/fb_mmc.c index 513b7ab02c..75899e4c28 100644 --- a/common/fb_mmc.c +++ b/common/fb_mmc.c @@ -23,13 +23,13 @@ static char *response_str; void fastboot_fail(const char *s) { - strncpy(response_str, "FAIL", 4); + strncpy(response_str, "FAIL\0", 5); strncat(response_str, s, RESPONSE_LEN - 4 - 1); } void fastboot_okay(const char *s) { - strncpy(response_str, "OKAY", 4); + strncpy(response_str, "OKAY\0", 5); strncat(response_str, s, RESPONSE_LEN - 4 - 1); } |