From: Paulo Alcantara <pc@manguebit.org>
Date: Thu, 31 Jul 2025 23:46:42 +0000 (-0300)
Subject: smb: client: default to nonativesocket under POSIX mounts
X-Git-Tag: v6.16.1~39
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f8517f20dcd6f5207b1fc523d08b3724a17c7e7d;p=thirdparty%2Fkernel%2Fstable.git

smb: client: default to nonativesocket under POSIX mounts

commit 6b445309eec2bc0594f3e24c7777aeef891d386e upstream.

SMB3.1.1 POSIX mounts require sockets to be created with NFS reparse
points.

Cc: linux-cifs@vger.kernel.org
Cc: Ralph Boehme <slow@samba.org>
Cc: David Howells <dhowells@redhat.com>
Cc: <stable@vger.kernel.org>
Reported-by: Matthew Richardson <m.richardson@ed.ac.uk>
Closes: https://marc.info/?i=1124e7cd-6a46-40a6-9f44-b7664a66654b@ed.ac.uk
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index f9681f852d201..3d0bb068f825f 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1674,6 +1674,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 				pr_warn_once("conflicting posix mount options specified\n");
 			ctx->linux_ext = 1;
 			ctx->no_linux_ext = 0;
+			ctx->nonativesocket = 1; /* POSIX mounts use NFS style reparse points */
 		}
 		break;
 	case Opt_nocase: