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 7A8623B6C06; Mon, 23 Mar 2026 14:02:04 +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=1774274524; cv=none; b=W3329oMgZGywDL/knnHJMm+1OAQZHAOpIxLoRkkqJrkKv7U2TCB+TMjDjoPM7G+JikCrum/42FPFaXYJ/6AL0ybnDRlb/fO+5qLL/KnhLyKsZShSz2AcjvOD5kZudmMlw+D2uvX9xkVEJ/KqLCPhs8X0vySH8AfwYqBpK2GrVnM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774274524; c=relaxed/simple; bh=p8O8FV5LI8aeF0VZezTt4m2Da5dZKvq0uOaccBxuvFg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uuJsH5za6bQnWgFvH4/68bby+C1vkoD4yZ5Wko0L1Ks9XCoCRgt+sUhFOQf1XjIKXxyMLL/98TFCa1rIObRDM63cqEzydF7Lvv6uXAD8yB3bXmDRsOqg0LzQM7isZ75bOq4ovGHDTNq6N862sCOYPjZTPIFmVkBqYcGDzqz8crg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=O2+ZtlCk; 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="O2+ZtlCk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0017BC2BC9E; Mon, 23 Mar 2026 14:02:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774274524; bh=p8O8FV5LI8aeF0VZezTt4m2Da5dZKvq0uOaccBxuvFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O2+ZtlCkqy55GNbnm1nSPXvG8Zg1IPDnt15rw2zG9BOUPrgMy9mNug/u3ZQl7cCTl VWwggsK6Gow4DD8iek+NeYJ+8+44PWFpHbD0MtElZiJ412gTslUGS+xlqS7Htti+pg j4Wz82vrMJI4mE0iPIooo6nZBQLyKh8fqDdcBEzQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hyunwoo Kim , Namjae Jeon , Steve French Subject: [PATCH 6.18 024/212] ksmbd: unset conn->binding on failed binding request Date: Mon, 23 Mar 2026 14:44:05 +0100 Message-ID: <20260323134504.520521031@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323134503.770111826@linuxfoundation.org> References: <20260323134503.770111826@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Namjae Jeon commit 282343cf8a4a5a3603b1cb0e17a7083e4a593b03 upstream. When a multichannel SMB2_SESSION_SETUP request with SMB2_SESSION_REQ_FLAG_BINDING fails ksmbd sets conn->binding = true but never clears it on the error path. This leaves the connection in a binding state where all subsequent ksmbd_session_lookup_all() calls fall back to the global sessions table. This fix it by clearing conn->binding = false in the error path. Cc: stable@vger.kernel.org Reported-by: Hyunwoo Kim Signed-off-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/smb/server/smb2pdu.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -1957,6 +1957,7 @@ out_err: } } smb2_set_err_rsp(work); + conn->binding = false; } else { unsigned int iov_len;