From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55C6935AC2B for ; Mon, 2 Mar 2026 13:10:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772457048; cv=none; b=Mc1mq+OYDnnGcI4WDSucYZTjYo2xe209WHJohm6Y1RLFOeZwkqB5H2Zf0ZCBlb7kecsrWY1p7GgJhHCG49wRzdhCoCgQ5k/iv5DY+182bwqPxSfhWWjRgphVIY51J+vu4SS2IHA43+4rlRS2Y15Ys45NiXWZEbH+CV0Tmsrg4Ws= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772457048; c=relaxed/simple; bh=0KqgChM3ETiTPVazylSdCcN5lxw6pHIUcW3hrx1FAZU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZmQwVu+VY+4VkbPX7/ukunDNmoX6RPFknDozQjYefZy1Fx2FVE5Up4UZ9QTXIUQF3LDCBCLK1xRFVRHXXRH+FlIVkds5SEQaJ0ypWPpX+REjV6EWlftPOgh2zp96kU9j9dq0lhO1JbnHs1rXiGOkOsI1uc1d4baDpmzFLjHzNzk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nYFK8oE4; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nYFK8oE4" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4833115090dso45764205e9.3 for ; Mon, 02 Mar 2026 05:10:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772457045; x=1773061845; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=rWw+SctroKTtWKTHCzhi97rZSR42cpiAZ7HwOlrAonQ=; b=nYFK8oE4k2/5CId+8ewgPT66d3drQt1DNQqOo3HI50hKxdZwqzdmTD0TtlYk2d9+qf ZnngOU2kssW8d+P9VgqnimLdPUj+jXwqv4gFx6O/+oX3zCRVYPGTkE6Se03gnGWD7sHE wzwzEb5KDziHzKr/KakL7U95cCaZQ44pCUt0KMuEMFkNLW/pREmSjc1C9f7c8INRzn/k Px+28FEr4pcYUcdK/OvxAgCTR6t2UqWb3F1ymsVJBjEGQ6gnIkfiPXsxNsoWj4yrZw2t 3aLUTFNIpJfOLfNYj+4IcbGfMkfzw8nWxMOdNSTuJrc3Dk9QIDC4Oi1o47rdErrbYKNl KVwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772457045; x=1773061845; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=rWw+SctroKTtWKTHCzhi97rZSR42cpiAZ7HwOlrAonQ=; b=WFkMR7v+YlLjKzs75cLvi5S5JQQVEkAzoS1zfgf5Q1YZLtjqTV+H6pDDAo2lb4YlKm zflR1Rv1d5IMfBJlLvnHbUyCgNHrDIfl1bKSy3wb/RlWVjOnsFQef5jRDmNK1AEYA11O 6w96x/l10a/jjm47m2anrELiGaGN5M9CAQMD9KSNO7V8E9DaV8i+WVaMrUu5+ipl6vkM oxxRcFeTJ5Q9zfPKHdRNfPlXKco1SoZHfxCvnCBe5shw2A4bJlJ8APqbMOo367PUytEy fQSV71N7rmlHv6vDZEHsQqytlGX0MSw08J2SuO9oBhWzEwiAtTUbC10Iq7YfqzJu8mng xLIg== X-Gm-Message-State: AOJu0YzZA9OuQDM599aIKuD0Qrm7TnupdrZB1I62VaxnedvqtFYQa9xN FyoRvjrnVhWQiGo+2zBWtly4aOZoyxcnYBtkPr6Aozml3kMcqRp6ro6KK+bAnA== X-Gm-Gg: ATEYQzzt4DL7fHo90JDn8COnfzyN9oE+d7k5Ydtn6BBHXalWojsAFdLB9VpFJ2BrBLX Zvw7BxFeHGfuJVGWZAonrodUlVLpZnTjxDFFJbUEBLWDXUWDu2x6rVQ1IAkHsVoYSvpAauugEKG zxH5NxXkO1C8Y18H1GYCtuc5tKyZUZuhdJE6sNxBYcIi39OLvKT+OmuGtfmRzCydJJejTU1eqpM eDEzBk+apBMkRFnMX7bq+WWx/bI3mlxfkVkkJcpmsvJ7USKH/A12LEah0xXg7x3plt+A0ujl+zg UDwVzhBoIhdhy24Evtxo4WbFvidwG9bYRaj1PsvvHWfEtYuZWgvOI34jUu6CsQ6vWzPrGWmQL86 Ae2RW/sR/QOoH8j5bMMAut2+DJXW6C7VK5VG/6xBfvjt+Gggqxn0ITeaM4fMuZN9LE0tDBBYKO6 LVz6JqFWj8QQKUMmJqFmSwVdXMyZRm2w+r6xRfbv7v3PCWb9ByhtBDFWXCeNTk9fl0oKQMuHpWA kzIhU03uA== X-Received: by 2002:a05:600c:c490:b0:479:1b0f:dfff with SMTP id 5b1f17b1804b1-483c9bb1fb0mr202615885e9.10.1772457045001; Mon, 02 Mar 2026 05:10:45 -0800 (PST) Received: from 127.com ([2620:10d:c092:600::1:cad2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483c3b346ccsm259935925e9.2.2026.03.02.05.10.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2026 05:10:44 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com, axboe@kernel.dk Subject: [PATCH v3 1/4] io_uring/timeout: check unused sqe fields Date: Mon, 2 Mar 2026 13:10:34 +0000 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Zero check unused SQE fields addr3 and pad2 for timeout and timeout update requests. They're not needed now, but could be used sometime in the future. Cc: stable@vger.kernel.org Signed-off-by: Pavel Begunkov --- io_uring/timeout.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/io_uring/timeout.c b/io_uring/timeout.c index cb61d4862fc6..e3815e3465dd 100644 --- a/io_uring/timeout.c +++ b/io_uring/timeout.c @@ -449,6 +449,8 @@ int io_timeout_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT))) return -EINVAL; + if (sqe->addr3 || sqe->__pad2[0]) + return -EINVAL; if (sqe->buf_index || sqe->len || sqe->splice_fd_in) return -EINVAL; @@ -521,6 +523,8 @@ static int __io_timeout_prep(struct io_kiocb *req, unsigned flags; u32 off = READ_ONCE(sqe->off); + if (sqe->addr3 || sqe->__pad2[0]) + return -EINVAL; if (sqe->buf_index || sqe->len != 1 || sqe->splice_fd_in) return -EINVAL; if (off && is_timeout_link) -- 2.53.0