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 E6D731F3FED; Tue, 30 Sep 2025 15:25:21 +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=1759245922; cv=none; b=hwkdZVt5/ExvZrBKVQuSisWsRHWq3I5P1tfRsLQBXBlXTInUmLgflJTb53vITxG/stA7MVs2X0hrPgVfaE64z720K7gNTzV5+iAGtwfaGZ4z/oyp1mtruBWi2js+DrWQgZZoddZCWDvbybcBZ1zhiU9D92JsU8aUg2sAsJSQZfQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759245922; c=relaxed/simple; bh=ZxEfE/edvgbYVzoccplrECp6+www/WdQpz0dW+PQ8p0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=N9vJJLpHJKVCZ3cteT92dfEjPK9rKEgARhOGWSkCoNOTjHSXuXyXcMF5O7/7gSuxUbDZ2fkVAZkCgy1JVE+fG3QQ2PQ5wPrf7A6aniCM1pnJrPKBFzezhxTO3fAC1hvvuMTWNwe4OrGZhF9Q34qCS9lsV7NU1ofGllz2gUxQVvs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JuZ+y4o5; 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="JuZ+y4o5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C052C4CEF0; Tue, 30 Sep 2025 15:25:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1759245921; bh=ZxEfE/edvgbYVzoccplrECp6+www/WdQpz0dW+PQ8p0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JuZ+y4o5O3kaKZoAiUWF+aGlzFNtSoktLrkgTXToORsZ+q5OtxjswQtQpKbFkcXPQ 2tgOnOmYrJHcpJZgl3VbuTDvtRGfUqq4t0Ah+VjgPSDEbEbxc8uaOZRWMQyf516N5k NUXZC+KX0Rss6O0iW6F0XqpFQLjacyS2GTOdMP7M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lukasz Czapnik , Aleksandr Loktionov , Przemek Kitszel , Simon Horman , Rafal Romanowski , Tony Nguyen Subject: [PATCH 6.6 59/91] i40e: fix validation of VF state in get resources Date: Tue, 30 Sep 2025 16:47:58 +0200 Message-ID: <20250930143823.643832639@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250930143821.118938523@linuxfoundation.org> References: <20250930143821.118938523@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lukasz Czapnik commit 877b7e6ffc23766448236e8732254534c518ba42 upstream. VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset. Fixes: 61125b8be85d ("i40e: Fix failed opcode appearing if handling messages from VF") Cc: stable@vger.kernel.org Signed-off-by: Lukasz Czapnik Reviewed-by: Aleksandr Loktionov Signed-off-by: Przemek Kitszel Reviewed-by: Simon Horman Tested-by: Rafal Romanowski Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 7 ++++++- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 ++- 2 files changed, 8 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -1459,6 +1459,7 @@ static void i40e_trigger_vf_reset(struct * functions that may still be running at this point. */ clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); + clear_bit(I40E_VF_STATE_RESOURCES_LOADED, &vf->vf_states); /* In the case of a VFLR, the HW has already reset the VF and we * just need to clean up, so don't hit the VFRTRIG register. @@ -2125,7 +2126,10 @@ static int i40e_vc_get_vf_resources_msg( size_t len = 0; int ret; - if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { + i40e_sync_vf_state(vf, I40E_VF_STATE_INIT); + + if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) || + test_bit(I40E_VF_STATE_RESOURCES_LOADED, &vf->vf_states)) { aq_ret = -EINVAL; goto err; } @@ -2228,6 +2232,7 @@ static int i40e_vc_get_vf_resources_msg( vf->default_lan_addr.addr); } set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); + set_bit(I40E_VF_STATE_RESOURCES_LOADED, &vf->vf_states); err: /* send the response back to the VF */ --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h @@ -41,7 +41,8 @@ enum i40e_vf_states { I40E_VF_STATE_MC_PROMISC, I40E_VF_STATE_UC_PROMISC, I40E_VF_STATE_PRE_ENABLE, - I40E_VF_STATE_RESETTING + I40E_VF_STATE_RESETTING, + I40E_VF_STATE_RESOURCES_LOADED, }; /* VF capabilities */