From nobody Tue Apr 7 21:23:53 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 5528537703C; Wed, 11 Mar 2026 21:56:44 +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=1773266204; cv=none; b=Ar8+tzxgm7Ei0DAI3NUOLRzAQQtt4fqsfm51CQ3ILQYmv+1JEJx+z7PeF2cHV2590JhhKPR+2VkXhQxYfkVSpUIQUBcNweTIN67/6jcq0HU/mCHKijtvezifWfEjV1SZKic+Pacowp+mex2xBvYEPOGdFmYmjbZ1WS5ebjzkpOI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773266204; 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=ZjFM14Xd/YEMN/2LWReySZ4etXBe8QR/xKAglVFAbaCGE8p/O2HMJNhDkuBNqMkj6SdOQqdfcQ1JvxplPtYDr2B3FF0QkgXM72+ZqUnAHRRsdCw1xjl4vlR6NfLVnKvftwkLD1buwVasrCPoIseicuUlNO7N7P+xXaXhyf1vw6A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cAArF1Pb; 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="cAArF1Pb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A051C2BC9E; Wed, 11 Mar 2026 21:56:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773266204; bh=2kDcoaN93XMP+vh/JKpvMv+7AMIQDdbFl8rAi3BOMms=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=cAArF1PbGZuSnQswuvYbB3OR1KhNuB/zaf9snndRZfXzJgJsAO43T3q6voxYqqyF4 G/QcMcAe12ThawkYiL8ayYgdO/Pt37HxWSjzJERxeMD/YZhv92esJQvLraIyVsqJ+o qKtiTSlp0lCa6n9qgIYIXOgpFBWr5FSeOJzCSzXNf7GgjVcoIC/T/A67Int3VHSQVA IBrevnsO7QUd82Qb38YZuhFMPmMXdRW3I9sHW+018C5khHwLeJY1gpWfpK6Fox5NgL n+xgoaRBvUE6AGYChBAFn1UTnT/gdrY7wVP9sLPZw5DNJtycDhN95zXhSItNCG00lT hFtKII85p4e8A== From: Christian Brauner Date: Wed, 11 Mar 2026 22:43:56 +0100 Subject: [PATCH RFC v3 13/26] 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: <20260311-work-kthread-nullfs-v3-13-3dd2cbe92ad0@kernel.org> References: <20260311-work-kthread-nullfs-v3-0-3dd2cbe92ad0@kernel.org> In-Reply-To: <20260311-work-kthread-nullfs-v3-0-3dd2cbe92ad0@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds , linux-kernel@vger.kernel.org, Alexander Viro , Jens Axboe , Jan Kara , Tejun Heo , Jann Horn , Christian Brauner X-Mailer: b4 0.15-dev-9fd7c 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=owGbwMvMwCU28Zj0gdSKO4sYT6slMWRufPIzwSSvbPXaqQxnDXfZBSTobNZf1n5OdIn2ESOvx bZmkbxsHaUsDGJcDLJiiiwO7Sbhcst5KjYbZWrAzGFlAhnCwMUpABOJvczIsOYgZ9OxE5Wrjqy/ uWpSsd/cc7duTmcSyHy9dWNDnHZi3l1GhmWSLxLvpEe3XOf8JFNiH9PQJv3rQY5tT33ac00dz5l hfAA= 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