From nobody Thu Apr 9 21:49:51 2026 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 34086368976; Thu, 5 Mar 2026 23:30:46 +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=1772753446; cv=none; b=qs5Bh3vvQUWzYByBHfrX3fj/I43rl34V7coV4DjNH/C2dsUkbxRto6XMms8Kj6yzuaV1hLqDgGMpYpyNYjfQ5l3tQ1r7fM1N9W/wfjNDykwPMgMJfRB0SgE1M+jRoWsJxPqZZrGmNE6ewqlQ0oNo4O/FRK4MfO2Z+PadUJoFKvo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772753446; c=relaxed/simple; bh=2kDcoaN93XMP+vh/JKpvMv+7AMIQDdbFl8rAi3BOMms=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=BZtUF9Q9kYyzRvQYqxG2GsXGDFz9Krr4UY1tb/s569yF2/0RyqJZq8J9qKuQG1MPpT5XFvkKjTp114wBpVe+TCUjA+YesaBTZeMh5Dh6hlZ3vhIoFQ7R9vWtBD9f4zJPValy2+XLSFsbwOqG40T1v7ysGEl0H0VLG2sxG3NTuuk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hQ3tLrvE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hQ3tLrvE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16DECC19423; Thu, 5 Mar 2026 23:30:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772753446; bh=2kDcoaN93XMP+vh/JKpvMv+7AMIQDdbFl8rAi3BOMms=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=hQ3tLrvENvt2R972Z9RbkxkNsJ6twwB1LIxphNjAm+YxjlOtkgaZx7Fl94Z4aMedg KcVflawvRCfuFZHmtBr5e7jVcVH3Du4NTXokW8UKmfHleA6DCEcS3h4PhiS5nds4VE Eao/vE/8L3uQyGtO73MYqILHeez4mXgTnyw7P0i7fhd0jgMyq8ciM3CUzEhtwTwMqm PL0rHi5yKDKI0Ee9Pu/sQ1Er4f8Zy3WT809UTzAUUgo2YHpcpK/6/wvgxVmzL5Ak/W 2mu5qA37FRzxXtycGbPBCL5nEakzLikzfrkpHXoO68KT+27PcRAIuJ+fGXxjw0KxgS 0sF7DIYQwnA2w== From: Christian Brauner Date: Fri, 06 Mar 2026 00:30:13 +0100 Subject: [PATCH RFC v2 10/23] ksmbd: use scoped_with_init_fs() for share path resolution Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260306-work-kthread-nullfs-v2-10-ad1b4bed7d3e@kernel.org> References: <20260306-work-kthread-nullfs-v2-0-ad1b4bed7d3e@kernel.org> In-Reply-To: <20260306-work-kthread-nullfs-v2-0-ad1b4bed7d3e@kernel.org> To: linux-fsdevel@vger.kernel.org, Linus Torvalds Cc: linux-kernel@vger.kernel.org, Alexander Viro , Jens Axboe , Jan Kara , Tejun Heo , Jann Horn , Christian Brauner X-Mailer: b4 0.15-dev-47773 X-Developer-Signature: v=1; a=openpgp-sha256; l=1232; i=brauner@kernel.org; h=from:subject:message-id; bh=2kDcoaN93XMP+vh/JKpvMv+7AMIQDdbFl8rAi3BOMms=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWSuEuK89aZl8Z22TW2Ns5fXv+tNDWOK/HjR5NG1yY8Xb Zz++GeCS0cpC4MYF4OsmCKLQ7tJuNxynorNRpkaMHNYmUCGMHBxCsBEfogyMjyVNmwPDv/4bsXK /Mkz+gWObJgV0H9wxZ3UkvX2rsvKebYyMnxSCwsI0ugwvl4896dP2LzU5HecWupaTAHKHMfixVf HMAAA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Use scoped_with_init_fs() to temporarily override current->fs for the kern_path() call in share_config_request() so the share path lookup happens in init's filesystem context. All ksmbd paths =E2=86=90 SMB command handlers =E2=86=90 handle_ksmbd_work(= ) =E2=86=90 workqueue =E2=86=90 ksmbd_conn_handler_loop() =E2=86=90 kthread Signed-off-by: Christian Brauner --- fs/smb/server/mgmt/share_config.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/smb/server/mgmt/share_config.c b/fs/smb/server/mgmt/share_c= onfig.c index 53f44ff4d376..4535566abef2 100644 --- a/fs/smb/server/mgmt/share_config.c +++ b/fs/smb/server/mgmt/share_config.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include =20 @@ -189,7 +190,8 @@ static struct ksmbd_share_config *share_config_request(= struct ksmbd_work *work, goto out; } =20 - ret =3D kern_path(share->path, 0, &share->vfs_path); + scoped_with_init_fs() + ret =3D kern_path(share->path, 0, &share->vfs_path); ksmbd_revert_fsids(work); if (ret) { ksmbd_debug(SMB, "failed to access '%s'\n", --=20 2.47.3