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 D9C2A1C6F57; Tue, 27 Aug 2024 15:16:39 +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=1724771799; cv=none; b=vAUFFrs5Nb0ttkCpw8PstjdvoY3MYq2yeWazo1GbhK8dr95LriJPDCj0tX184eur9A5AV7je7O4jNlKVpI8RhtyBWdPvga94zqthNxHYjJHQLQYT5wkU9HovghJnlc9Gs15/UkGT0x3aChSxTQYtc7qeTBOCFeAYNG0f3lZNHRQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724771799; c=relaxed/simple; bh=p+73uSk875wTSOqfZobF7j/dfiXVYbA0HcTbD3GDHso=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tCvbAkhbcU7uoWf0extn46edvVoXBMwvyEYDlP1mGcTAqIcGX/KPEryy+Q200QaSl885/l4Pod07AkU65NaXqx/uY7aTP9aabCNz7eXd38K9dNwVnATBIrYImVc+YGx8H1PtHEIKfHG7HtekIV4co8Qzk/oAi1gI8g5mSg2G7oE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1MEbNpbn; 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="1MEbNpbn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4338EC4DE18; Tue, 27 Aug 2024 15:16:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1724771799; bh=p+73uSk875wTSOqfZobF7j/dfiXVYbA0HcTbD3GDHso=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1MEbNpbngJpV3pQRBcj78goNI6vNzJEX12MtLT1sY/vHhtZtOhfRYfqxRrM9uctrt HZUmAoouW+MmVRC1zr1Dhaq0i8Ir4n+weTIq/zHpt3PP4tWp1THjkmHzW8THJasZbV rUUvOuD/v/qwhVGH0dW9tprkBhznMFJ2WScNyilw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhen Lei , Stephen Smalley , Paul Moore Subject: [PATCH 6.1 024/321] selinux: fix potential counting error in avc_add_xperms_decision() Date: Tue, 27 Aug 2024 16:35:32 +0200 Message-ID: <20240827143839.132940130@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240827143838.192435816@linuxfoundation.org> References: <20240827143838.192435816@linuxfoundation.org> User-Agent: quilt/0.67 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhen Lei commit 379d9af3f3da2da1bbfa67baf1820c72a080d1f1 upstream. The count increases only when a node is successfully added to the linked list. Cc: stable@vger.kernel.org Fixes: fa1aa143ac4a ("selinux: extended permissions for ioctls") Signed-off-by: Zhen Lei Acked-by: Stephen Smalley Signed-off-by: Paul Moore Signed-off-by: Greg Kroah-Hartman --- security/selinux/avc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -332,12 +332,12 @@ static int avc_add_xperms_decision(struc { struct avc_xperms_decision_node *dest_xpd; - node->ae.xp_node->xp.len++; dest_xpd = avc_xperms_decision_alloc(src->used); if (!dest_xpd) return -ENOMEM; avc_copy_xperms_decision(&dest_xpd->xpd, src); list_add(&dest_xpd->xpd_list, &node->ae.xp_node->xpd_head); + node->ae.xp_node->xp.len++; return 0; }