linux-kernel - [PATCH] coda: return -EFAULT if copy fails

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20230515061923.767680-1-suhui@nfschina.com>
Date:   Mon, 15 May 2023 14:19:23 +0800
From:   Su Hui <suhui@...china.com>
To:     Jan Harkes <jaharkes@...cmu.edu>, coda@...cmu.edu
Cc:     codalist@...a.cs.cmu.edu, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org, Su Hui <suhui@...china.com>
Subject: [PATCH] coda: return -EFAULT if copy fails

The copy_to/from_user() functions should return -EFAULT instead of -EINVAL.

Signed-off-by: Su Hui <suhui@...china.com>
---
 fs/coda/upcall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index cd6a3721f6f6..1517dc3bd592 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -510,7 +510,7 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
         /* get the data out of user space */
 	if (copy_from_user((char *)inp + (long)inp->coda_ioctl.data,
 			   data->vi.in, data->vi.in_size)) {
-		error = -EINVAL;
+		error = -EFAULT;
 	        goto exit;
 	}
 
-- 
2.30.2