From a21b7f0cff1906a93a0130b74713b15a0b36481d Mon Sep 17 00:00:00 2001 From: Navid Emamdoost Date: Wed, 11 Sep 2019 10:09:02 -0500 Subject: [PATCH] net: qrtr: fix memort leak in qrtr_tun_write_iter In qrtr_tun_write_iter the allocated kbuf should be release in case of error or success return. v2 Update: Thanks to David Miller for pointing out the release on success path as well. Signed-off-by: Navid Emamdoost Signed-off-by: David S. Miller --- net/qrtr/tun.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/qrtr/tun.c b/net/qrtr/tun.c index ccff1e544c21..e35869e81766 100644 --- a/net/qrtr/tun.c +++ b/net/qrtr/tun.c @@ -84,11 +84,14 @@ static ssize_t qrtr_tun_write_iter(struct kiocb *iocb, struct iov_iter *from) if (!kbuf) return -ENOMEM; - if (!copy_from_iter_full(kbuf, len, from)) + if (!copy_from_iter_full(kbuf, len, from)) { + kfree(kbuf); return -EFAULT; + } ret = qrtr_endpoint_post(&tun->ep, kbuf, len); + kfree(kbuf); return ret < 0 ? ret : len; }