linux-kernel - [PATCH] Regression: fix mounting NFS when NFSv3 support is not compiled

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

Message-ID: <20101031155840.21196.49014.stgit@localhost.localdomain>
Date:	Sun, 31 Oct 2010 17:58:40 +0200
From:	Paulius Zaleckas <paulius.zaleckas@...il.com>
To:	Trond.Myklebust@...app.com
Cc:	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Regression: fix mounting NFS when NFSv3 support is not
	compiled

Trying to mount NFS (root partition in my case) fails if CONFIG_NFS_V3
is not selected. nfs_validate_mount_data() returns EPROTONOSUPPORT,
because of this check:

#ifndef CONFIG_NFS_V3
	if (args->version == 3)
		goto out_v3_not_compiled;
#endif /* !CONFIG_NFS_V3 */

and args->version was always initialized to 3.

It was working in 2.6.36

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@...il.com>
---

 fs/nfs/super.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 0a42e8f..8737017 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2277,7 +2277,11 @@ static int nfs_get_sb(struct file_system_type *fs_type,
 	};
 	int error = -ENOMEM;
 
+#ifdef CONFIG_NFS_V3
 	data = nfs_alloc_parsed_mount_data(3);
+#else
+	data = nfs_alloc_parsed_mount_data(2);
+#endif
 	mntfh = nfs_alloc_fhandle();
 	if (data == NULL || mntfh == NULL)
 		goto out_free_fh;

--
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/