From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3416EC4332F for ; Tue, 14 Nov 2023 02:18:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231661AbjKNCSD (ORCPT ); Mon, 13 Nov 2023 21:18:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229659AbjKNCSC (ORCPT ); Mon, 13 Nov 2023 21:18:02 -0500 Received: from mail-pg1-f200.google.com (mail-pg1-f200.google.com [209.85.215.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39CAEF3 for ; Mon, 13 Nov 2023 18:18:00 -0800 (PST) Received: by mail-pg1-f200.google.com with SMTP id 41be03b00d2f7-5b7fb057153so6022050a12.1 for ; Mon, 13 Nov 2023 18:18:00 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699928280; x=1700533080; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8IQBKmMVHldNmqwsu1FOhAa3LFwsAemxqs/7UxPZ5rQ=; b=fNOMR9YGA2SyydsPWMh2DLeGGEKhQ7xIMFLAVtzZOTnaXh+fG8FH/HLwoW5AORg80W cDe7t7lVRRwVAGjf65k5vB8bM/3VgC2iiDgoGGiCjIhvXn4qT1NpLDcOy+8/WiqFc4yB GCr0uTnJFiXSs+UwKeYCHhDvnx6K2Xsk9e8UWxO2xJiJfkibCGP97BEDFbLcTpKe2/ah M1W6ixg2VvxV9dqEw6j/DhvM5LewHP90sgwb/56X4eTVwShIFWN6KZonlHdPILTChhdA Ii2fMxJ7hMab+pXmFzyFUMTSTyZUfBm2uck6UXQAIh9o9AjnT1RUkE91mjjjguAT/dDO UWIQ== X-Gm-Message-State: AOJu0YzUVubbjuaH3DDwUQbtaxvVzGQDsRITQ+qddAVYcZEawUVwXedT Rk3h3HtgJid2DoeBSC5wrEOQBa4pkeWey2ke2bMLOeV3zbCY5xI= X-Google-Smtp-Source: AGHT+IFciV0KAGsBwG8Ae+V1FhtbDkGvyebLRU3JNX8mqi/2UfqSK/ThqDjrCWEPL+FQw96D+H9pPAKKW33KYCVZZ7DBrffQEfP6 MIME-Version: 1.0 X-Received: by 2002:a63:4142:0:b0:585:6402:41e4 with SMTP id o63-20020a634142000000b00585640241e4mr216050pga.7.1699928279838; Mon, 13 Nov 2023 18:17:59 -0800 (PST) Date: Mon, 13 Nov 2023 18:17:59 -0800 In-Reply-To: <000000000000ae5995060a125650@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000437473060a1365b7@google.com> Subject: Re: [syzbot] [PATCH] Test np in autofs_fill_super From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [PATCH] Test np in autofs_fill_super Author: eadavis@qq.com please test null ptr in autofs_fill_super #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 4bbdb725a36b diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index a5083d447a62..f2e89a444edf 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -331,6 +331,9 @@ static int autofs_fill_super(struct super_block *s, struct fs_context *fc) goto fail; root_inode = autofs_get_inode(s, S_IFDIR | 0755); + if (!root_inode) + goto fail; + root_inode->i_uid = ctx->uid; root_inode->i_gid = ctx->gid;