linux-kernel - [PATCH] staging: lustre: ldlm: ldlm_resource.c

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <1406786825-1196-1-git-send-email-askb23@gmail.com>
Date:	Thu, 31 Jul 2014 11:37:05 +0530
From:	Anil Belur <askb23@...il.com>
To:	lisa@...apiadmin.com, andreas.dilger@...el.com, bergwolf@...il.com,
	gregkh@...uxfoundation.org
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Anil Belur <askb23@...il.com>
Subject: [PATCH] staging: lustre: ldlm: ldlm_resource.c - fix dereferenceing user space buffer

- this fixes sparse warning for directly deferencing user space buffer

./lustre/ldlm/ldlm_resource.c:202:35: warning: incorrect type in argument 2 (different address spaces)
./lustre/ldlm/ldlm_resource.c:202:35:    expected void const [noderef] <asn:1>*from
./lustre/ldlm/ldlm_resource.c:202:35:    got char const *buffer

Signed-off-by: Anil Belur <askb23@...il.com>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_resource.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 91d028b..efd45e5 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -189,8 +189,9 @@ static int lprocfs_lru_size_seq_show(struct seq_file *m, void *v)
 	return lprocfs_rd_uint(m, nr);
 }
 
-static ssize_t lprocfs_lru_size_seq_write(struct file *file, const char *buffer,
-				      size_t count, loff_t *off)
+static ssize_t lprocfs_lru_size_seq_write(struct file *file,
+					const char __user *buffer,
+					size_t count, loff_t *off)
 {
 	struct ldlm_namespace *ns = ((struct seq_file *)file->private_data)->private;
 	char dummy[MAX_STRING_SIZE + 1];
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/