From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F18843D1CBB; Tue, 3 Feb 2026 16:30:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770136201; cv=none; b=KX/QvrByr1pUWl936xdC2RzrSGQK6/y4g2BM4bmuKaoEYfIpr/0QcmPpKlFujSbM1EEaKgHf14XKLffJ6KdVT205uS60Exf4Z+PNsTYF3rQ/IAYTg8yVoChpSQUP/orB4Sz6fruolbHH5jhyd2CTcq7SflNnhgGsG7BVDon+3WA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770136201; c=relaxed/simple; bh=sdLmQLcnydUHstsDBoGkNnn6uT6GvcElNsNHBQUkxpQ=; h=Subject:To:Cc:From:Date:In-Reply-To:Message-ID:MIME-Version: Content-Type; b=OBaz/q8uaMThKYIpgFOKR6QVak/R6xdgm3zq+nyHAlkZxV5XTJRzCd98SsOYxavLvtrtUOH1YjVZ70aeg3aChQTheXJb7yqVac8G3stPuOtZrMlHmiO/Xt9lkN1dxwYJG+YrwgOkdp7dR/xd3yiyU1Lvm6k/Fd4sKfKFWy+SAck= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=siAcbDV0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="siAcbDV0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23684C19421; Tue, 3 Feb 2026 16:29:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770136200; bh=sdLmQLcnydUHstsDBoGkNnn6uT6GvcElNsNHBQUkxpQ=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=siAcbDV0CseK8cC9D2O+Ad74sbhLyEP+ISS/zlhX6/v3pzu2mTEnIDF9ohDMrOv0j T7zKxEEek8OklhxJWVCchvdmg3JLZ1lQ6/mcCZCrixo5J4JWBM2FvhQWp7jm/oDs5d RnWOqzOVLK4FBnoDSk945lp0GvTUGFXKJ6ev5MmI= Subject: Patch "fs/ntfs3: Initialize allocated memory before use" has been added to the 5.15-stable tree To: 1468888505@139.com,almaz.alexandrovich@paragon-software.com,gregkh@linuxfoundation.org,khalid@kernel.org,kubik.bartlomiej@gmail.com,ntfs3@lists.linux.dev,patches@lists.linux.dev,syzbot+0399100e525dd9696764@syzkaller.appspotmail.com,syzbot+332bd4e9d148f11a87dc@syzkaller.appspotmail.com Cc: From: Date: Tue, 03 Feb 2026 17:29:22 +0100 In-Reply-To: <20260126061956.1206899-1-1468888505@139.com> Message-ID: <2026020322-imbecile-revivable-e02f@gregkh> Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore This is a note to let you know that I've just added the patch titled fs/ntfs3: Initialize allocated memory before use to the 5.15-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: fs-ntfs3-initialize-allocated-memory-before-use.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From 1468888505@139.com Mon Jan 26 07:20:00 2026 From: Li hongliang <1468888505@139.com> Date: Mon, 26 Jan 2026 14:19:56 +0800 Subject: fs/ntfs3: Initialize allocated memory before use To: gregkh@linuxfoundation.org, stable@vger.kernel.org, kubik.bartlomiej@gmail.com Cc: patches@lists.linux.dev, linux-kernel@vger.kernel.org, almaz.alexandrovich@paragon-software.com, ntfs3@lists.linux.dev, khalid@kernel.org Message-ID: <20260126061956.1206899-1-1468888505@139.com> From: Bartlomiej Kubik [ Upstream commit a8a3ca23bbd9d849308a7921a049330dc6c91398 ] KMSAN reports: Multiple uninitialized values detected: - KMSAN: uninit-value in ntfs_read_hdr (3) - KMSAN: uninit-value in bcmp (3) Memory is allocated by __getname(), which is a wrapper for kmem_cache_alloc(). This memory is used before being properly cleared. Change kmem_cache_alloc() to kmem_cache_zalloc() to properly allocate and clear memory before use. Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block") Fixes: 78ab59fee07f ("fs/ntfs3: Rework file operations") Tested-by: syzbot+332bd4e9d148f11a87dc@syzkaller.appspotmail.com Reported-by: syzbot+332bd4e9d148f11a87dc@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=332bd4e9d148f11a87dc Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block") Fixes: 78ab59fee07f ("fs/ntfs3: Rework file operations") Tested-by: syzbot+0399100e525dd9696764@syzkaller.appspotmail.com Reported-by: syzbot+0399100e525dd9696764@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=0399100e525dd9696764 Reviewed-by: Khalid Aziz Signed-off-by: Bartlomiej Kubik Signed-off-by: Konstantin Komarov Signed-off-by: Li hongliang <1468888505@139.com> Signed-off-by: Greg Kroah-Hartman --- fs/ntfs3/inode.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -1298,7 +1298,7 @@ struct inode *ntfs_create_inode(struct u fa |= FILE_ATTRIBUTE_READONLY; /* Allocate PATH_MAX bytes. */ - new_de = __getname(); + new_de = kmem_cache_zalloc(names_cachep, GFP_KERNEL); if (!new_de) { err = -ENOMEM; goto out1; @@ -1694,10 +1694,9 @@ int ntfs_link_inode(struct inode *inode, struct ATTR_FILE_NAME *de_name; /* Allocate PATH_MAX bytes. */ - de = __getname(); + de = kmem_cache_zalloc(names_cachep, GFP_KERNEL); if (!de) return -ENOMEM; - memset(de, 0, PATH_MAX); /* Mark rw ntfs as dirty. It will be cleared at umount. */ ntfs_set_state(sbi, NTFS_DIRTY_DIRTY); @@ -1742,7 +1741,7 @@ int ntfs_unlink_inode(struct inode *dir, return -EINVAL; /* Allocate PATH_MAX bytes. */ - de = __getname(); + de = kmem_cache_zalloc(names_cachep, GFP_KERNEL); if (!de) return -ENOMEM; Patches currently in stable-queue which might be from 1468888505@139.com are queue-5.15/fs-ntfs3-initialize-allocated-memory-before-use.patch