All of lore.kernel.org
 help / color / mirror / Atom feed
From: Steve French <smfrench@gmail.com>
To: CIFS <linux-cifs@vger.kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>,
	Namjae Jeon <namjae.jeon@samsung.com>
Subject: [PATCH][SMB3.1.1] incorrect initialization of the posix extensions in new mount API
Date: Mon, 23 Aug 2021 14:07:22 -0500	[thread overview]
Message-ID: <CAH2r5muZqv0Zv415suhAjv5s9a=rU8nMkY1p7doq5koMYU0wBA@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 1091 bytes --]

We were incorrectly initializing the posix extensions in the
conversion to the new mount API.

CC: <stable@vger.kernel.org> # 5.11+
Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Suggested-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---
 fs/cifs/fs_context.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 4515a0883262..3109def8e199 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -1252,10 +1252,17 @@ static int smb3_fs_context_parse_param(struct
fs_context *fc,
  ctx->posix_paths = 1;
  break;
  case Opt_unix:
- if (result.negated)
+ if (result.negated) {
+ if (ctx->linux_ext == 1)
+ pr_warn_once("conflicting posix mount options specified\n");
  ctx->linux_ext = 0;
- else
  ctx->no_linux_ext = 1;
+ } else {
+ if (ctx->no_linux_ext == 1)
+ pr_warn_once("conflicting posix mount options specified\n");
+ ctx->linux_ext = 1;
+ ctx->no_linux_ext = 0;
+ }
  break;
  case Opt_nocase:
  ctx->nocase = 1;

-- 
Thanks,

Steve

[-- Attachment #2: 0001-smb3-fix-posix-extensions-mount-option.patch --]
[-- Type: text/x-patch, Size: 1322 bytes --]

From bfb7d1b8806fe8decc977963b9eddbf9c4ced9d5 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Mon, 23 Aug 2021 13:52:12 -0500
Subject: [PATCH] smb3: fix posix extensions mount option

We were incorrectly initializing the posix extensions in the
conversion to the new mount API.

CC: <stable@vger.kernel.org> # 5.11+
Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Suggested-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---
 fs/cifs/fs_context.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 4515a0883262..3109def8e199 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -1252,10 +1252,17 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 			ctx->posix_paths = 1;
 		break;
 	case Opt_unix:
-		if (result.negated)
+		if (result.negated) {
+			if (ctx->linux_ext == 1)
+				pr_warn_once("conflicting posix mount options specified\n");
 			ctx->linux_ext = 0;
-		else
 			ctx->no_linux_ext = 1;
+		} else {
+			if (ctx->no_linux_ext == 1)
+				pr_warn_once("conflicting posix mount options specified\n");
+			ctx->linux_ext = 1;
+			ctx->no_linux_ext = 0;
+		}
 		break;
 	case Opt_nocase:
 		ctx->nocase = 1;
-- 
2.30.2


             reply	other threads:[~2021-08-23 19:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-23 19:07 Steve French [this message]
2021-08-24 11:52 ` [PATCH][SMB3.1.1] incorrect initialization of the posix extensions in new mount API Christian Brauner
2021-08-24 16:02   ` Steve French

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAH2r5muZqv0Zv415suhAjv5s9a=rU8nMkY1p7doq5koMYU0wBA@mail.gmail.com' \
    --to=smfrench@gmail.com \
    --cc=christian.brauner@ubuntu.com \
    --cc=linux-cifs@vger.kernel.org \
    --cc=namjae.jeon@samsung.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.