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crypto: hisilicon/qm - replace 'sprintf' with 'scnprintf'

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Replace 'sprintf' with 'scnprintf' to avoid overrun.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian 2020-10-31 17:07:05 +08:00 committed by Herbert Xu
parent cd1aff982a
commit 09493afbc6
1 changed files with 2 additions and 1 deletions
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3
drivers/crypto/hisilicon/qm.c
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@ -932,7 +932,8 @@ static ssize_t qm_debug_read(struct file *filp, char __user *buf,
return -EINVAL;
}
mutex_unlock(&file->lock);
ret = sprintf(tbuf, "%u\n", val);
ret = scnprintf(tbuf, QM_DBG_TMP_BUF_LEN, "%u\n", val);
return simple_read_from_buffer(buf, count, pos, tbuf, ret);
}