From nobody Thu Apr 9 21:49:50 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 B086836827E; Thu, 5 Mar 2026 23:30:48 +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=1772753448; cv=none; b=lLtr/EpbrwEIDuxFIT9KkdBfR31VP8j6RtxEkBN+VL5kRFXl/RQh86KaAjboQes5IhZi+ecP8ccvjBQQc7/HNDRzDfHz77ObZPiZJJS9wGtil2ISaRGPtEnRNxRuP9soR8TT1t5FLStPTI3O76fWeBqABE2/U31L4xK6H/1BFV0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772753448; c=relaxed/simple; bh=l6PdqSMlvF3b2b9R+GwUvIJev9lUgXCwT4zIDcHSxvE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=OansQhRADFEl7MEG4D2hcoM28zo4cdIuwt3xtl8bhEUhwBQhTrSOy0KALDLF5SNiIhCayHXJEYvfOUF+pjtTmVLqalj2MMdtDIS2H5oBUFvrFauRlGy+xRWZnBvcJ3bleu5PewklJXrOWraKO4yHCenx+2za03x3XkF0bbD1J/4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hOK3xPhB; 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="hOK3xPhB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8048FC19423; Thu, 5 Mar 2026 23:30:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772753448; bh=l6PdqSMlvF3b2b9R+GwUvIJev9lUgXCwT4zIDcHSxvE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=hOK3xPhBYSMcN4s6Wol/7FqBx0biZqvOYEs6j7CEYTFExMNRF8BudzEGnZ1YGJFU1 +mheRURchbLM39lVCax8esxTDYjh8J9AYUYCQpyXbqFmgw2O8Kra0dOHl6e2uzHFtu UltDYGOGK9jVX2TAQyMG4fLlJn9slhtUgr2QJd1+XputTrNv0idTYnPwx1hnerBKvc GSqDeCpzyg4rUwCuU59R6XfS9ZrJbPjrXXXXg0VU7kfaPranmiRWWOlxAYQrTcId/k 6e6A5Wf770efd5LXp3WdFrvEJY+WHnUNlNZxy/plDWuYamnNvMsflEZBmsMye1mttM 4HVkybOIpKCCA== From: Christian Brauner Date: Fri, 06 Mar 2026 00:30:14 +0100 Subject: [PATCH RFC v2 11/23] ksmbd: use scoped_with_init_fs() for filesystem info path lookup 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-v2-11-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=1195; i=brauner@kernel.org; h=from:subject:message-id; bh=l6PdqSMlvF3b2b9R+GwUvIJev9lUgXCwT4zIDcHSxvE=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWSuEuIUuVhymlmdLctFlsl/zmP7VQt7DtVes+OYuNrAY /vGXevZOkpZGMS4GGTFFFkc2k3C5ZbzVGw2ytSAmcPKBDKEgYtTACbSeIPhr1xin64s455js3d+ qVvGHH/Votn+jpbRXYYwe/5Pm6QSqxgZ9n95cimCScI3b+kswwsnLmzNM/V+ULDSavohw7rXs95 d5gUA 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 smb2_get_info_filesystem() 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/smb2pdu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 743c629fe7ec..0667b0b663cd 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -5463,7 +5464,8 @@ static int smb2_get_info_filesystem(struct ksmbd_work= *work, if (!share->path) return -EIO; =20 - rc =3D kern_path(share->path, LOOKUP_NO_SYMLINKS, &path); + scoped_with_init_fs() + rc =3D kern_path(share->path, LOOKUP_NO_SYMLINKS, &path); if (rc) { pr_err("cannot create vfs path\n"); return -EIO; --=20 2.47.3