This is a note to let you know that I've just added the patch titled
cifs: Fix uninitialized memory read for smb311 posix symlink create
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cifs-fix-uninitialized-memory-read-for-smb311-posix-symlink-create.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a152d05ae4a71d802d50cf9177dba34e8bb09f68 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@xxxxxxxxx>
Date: Wed, 11 Jan 2023 12:37:58 +0100
Subject: cifs: Fix uninitialized memory read for smb311 posix symlink create
From: Volker Lendecke <vl@xxxxxxxxx>
commit a152d05ae4a71d802d50cf9177dba34e8bb09f68 upstream.
If smb311 posix is enabled, we send the intended mode for file
creation in the posix create context. Instead of using what's there on
the stack, create the mfsymlink file with 0644.
Fixes: ce558b0e17f8a ("smb3: Add posix create context for smb3.11 posix mounts")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Volker Lendecke <vl@xxxxxxxxx>
Reviewed-by: Tom Talpey <tom@xxxxxxxxxx>
Reviewed-by: Paulo Alcantara (SUSE) <pc@xxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/link.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -481,6 +481,7 @@ smb3_create_mf_symlink(unsigned int xid,
oparms.disposition = FILE_CREATE;
oparms.fid = &fid;
oparms.reconnect = false;
+ oparms.mode = 0644;
rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL,
NULL);
Patches currently in stable-queue which might be from vl@xxxxxxxxx are
queue-5.4/cifs-fix-uninitialized-memory-read-for-smb311-posix-symlink-create.patch
