If (len > reslen) we must not call copy_to_user() since kernel buffer is smaller than we want to copy. Similar code in this file is correct, so this bug was a typo. Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx> --- drivers/message/i2o/i2o_config.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c index c4b117f..4dd39a0 100644 --- a/drivers/message/i2o/i2o_config.c +++ b/drivers/message/i2o/i2o_config.c @@ -115,7 +115,7 @@ static int i2o_cfg_gethrt(unsigned long arg) put_user(len, kcmd.reslen); if (len > reslen) ret = -ENOBUFS; - if (copy_to_user(kcmd.resbuf, (void *)hrt, len)) + else if (copy_to_user(kcmd.resbuf, (void *)hrt, len)) ret = -EFAULT; return ret; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
