From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Matias Bjorling <mb@lightnvm.io>
Cc: linux-kernel@vger.kernel.org,
Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Subject: [PATCH] lightnvm: fix memory leak
Date: Mon, 23 Nov 2015 16:05:11 +0530 [thread overview]
Message-ID: <1448274911-8651-1-git-send-email-sudipm.mukherjee@gmail.com> (raw)
If copy_to_user() fails we returned error but we missed releasing
devices.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
drivers/lightnvm/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index f659e60..6688b60 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -721,8 +721,11 @@ static long nvm_ioctl_get_devices(struct file *file, void __user *arg)
devices->nr_devices = i;
- if (copy_to_user(arg, devices, sizeof(struct nvm_ioctl_get_devices)))
+ if (copy_to_user(arg, devices,
+ sizeof(struct nvm_ioctl_get_devices))) {
+ kfree(devices);
return -EFAULT;
+ }
kfree(devices);
return 0;
--
1.9.1
next reply other threads:[~2015-11-23 10:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-23 10:35 Sudip Mukherjee [this message]
2015-11-23 15:13 ` Matias Bjørling
2015-11-23 16:40 ` Sudip Mukherjee
2015-11-23 18:41 ` Matias
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