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 300C2C433FE for ; Thu, 6 Oct 2022 01:16:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229725AbiJFBQK (ORCPT ); Wed, 5 Oct 2022 21:16:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229469AbiJFBQG (ORCPT ); Wed, 5 Oct 2022 21:16:06 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 145D486882 for ; Wed, 5 Oct 2022 18:16:03 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id s2-20020a056e02216200b002f9de38e484so483153ilv.8 for ; Wed, 05 Oct 2022 18:16:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc: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=/dWBK0PeJlb7q4EWCh2HW1d212YEgbJN5ftwytS6qlU=; b=QYKbz1zu7tUBbp4DBWCD7eaoVc1XIKnEVQrr9i0CApGM1cqiT4vXh5e6blGGGA9lzm h/UGm0eHG3a8QhzLDUJ1EbqJu4pyMbhElX3jqqSygf8YzpWamGan9CoUvIXSP3lBvwjD Gi7LHxZGImMDBN0e0lzxWfmS644s9dBn2AMu4CogYAk35Dy46H+DYWKHJBgjXYY81hie By5HexemcPhoQCm1xTFmGDFujT6aoCRNHSaGPy/K8awds+9MEhq8jYTxCgz5xZJwf9RB nszLjVWnql3YP0JxW1fdYL0wzOT40XLr/NTiztz1lRB7v+hA9ByeqmfBwUFbyrBAJFIj Vsfw== X-Gm-Message-State: ACrzQf0NwjdA9yUAe3Al1rolVcad3fEOu7QWsI6kugWmBCa0v+zLxybA K4U0JpG7hpyd7iX2JEqJQHgiuXxp2HVNhCcOXRzDidRNlwus X-Google-Smtp-Source: AMsMyM7GK1sett8WQEFOpZ3fTYbw2xsA0GylA31kuN0MnoHOCQgNiRasL4rNg15YRuweM92V7HeZb+6hXgPn57Al5Jpenml0hLt1 MIME-Version: 1.0 X-Received: by 2002:a05:6638:2114:b0:363:5abd:f22c with SMTP id n20-20020a056638211400b003635abdf22cmr1256687jaj.298.1665018962431; Wed, 05 Oct 2022 18:16:02 -0700 (PDT) Date: Wed, 05 Oct 2022 18:16:02 -0700 In-Reply-To: <4449089.LvFx2qVVIh@mypc> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ccd4ae05ea536f40@google.com> Subject: Re: [syzbot] memory leak in __get_metapage From: syzbot To: "Fabio M. De Francesco" Cc: akpm@linux-foundation.org, fmdefrancesco@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: 4fe89d07dcc2 Linux 6.0 >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0 >> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a >> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils > for Debian) 2.35.2 >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000 >> >> Downloadable assets: >> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/ > disk-4fe89d07.raw.xz >> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/ > vmlinux-4fe89d07.xz >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com >> >> BUG: memory leak >> unreferenced object 0xffff888114339e80 (size 128): >> comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s) >> hex dump (first 32 bytes): >> 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> backtrace: >> [] mempool_alloc+0x73/0x230 mm/mempool.c:392 >> [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] >> [] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651 >> [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 >> [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] >> [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 >> [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 >> [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 >> [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 >> [] vfs_mkdir+0x223/0x340 fs/namei.c:4013 >> [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038 >> [] __do_sys_mkdir fs/namei.c:4058 [inline] >> [] __se_sys_mkdir fs/namei.c:4056 [inline] >> [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056 >> [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] >> [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 >> [] entry_SYSCALL_64_after_hwframe+0x63/0xcd >> >> BUG: memory leak >> unreferenced object 0xffff888114339e00 (size 128): >> comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s) >> hex dump (first 32 bytes): >> 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> backtrace: >> [] mempool_alloc+0x73/0x230 mm/mempool.c:392 >> [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] >> [] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651 >> [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 >> [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] >> [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 >> [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 >> [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 >> [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 >> [] vfs_mkdir+0x223/0x340 fs/namei.c:4013 >> [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038 >> [] __do_sys_mkdir fs/namei.c:4058 [inline] >> [] __se_sys_mkdir fs/namei.c:4056 [inline] >> [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056 >> [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] >> [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 >> [] entry_SYSCALL_64_after_hwframe+0x63/0xcd >> >> BUG: memory leak >> unreferenced object 0xffff888114339d80 (size 128): >> comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s) >> hex dump (first 32 bytes): >> 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> backtrace: >> [] mempool_alloc+0x73/0x230 mm/mempool.c:392 >> [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] >> [] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651 >> [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 >> [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] >> [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 >> [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 >> [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 >> [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 >> [] vfs_mkdir+0x223/0x340 fs/namei.c:4013 >> [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038 >> [] __do_sys_mkdir fs/namei.c:4058 [inline] >> [] __se_sys_mkdir fs/namei.c:4056 [inline] >> [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056 >> [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] >> [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 >> [] entry_SYSCALL_64_after_hwframe+0x63/0xcd >> >> BUG: memory leak >> unreferenced object 0xffff8881142f0300 (size 128): >> comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s) >> hex dump (first 32 bytes): >> 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >> backtrace: >> [] mempool_alloc+0x73/0x230 mm/mempool.c:392 >> [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] >> [] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651 >> [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 >> [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] >> [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 >> [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 >> [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 >> [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 >> [] vfs_mkdir+0x223/0x340 fs/namei.c:4013 >> [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038 >> [] __do_sys_mkdir fs/namei.c:4058 [inline] >> [] __se_sys_mkdir fs/namei.c:4056 [inline] >> [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056 >> [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] >> [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 >> [] entry_SYSCALL_64_after_hwframe+0x63/0xcd >> > > #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git want 2 args (repo, branch), got 1 >