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 1BC36C04FDF for ; Tue, 15 Aug 2023 09:16:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235947AbjHOJPp (ORCPT ); Tue, 15 Aug 2023 05:15:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235990AbjHOJPS (ORCPT ); Tue, 15 Aug 2023 05:15:18 -0400 Received: from mail-pj1-f77.google.com (mail-pj1-f77.google.com [209.85.216.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CA741BC2 for ; Tue, 15 Aug 2023 02:15:16 -0700 (PDT) Received: by mail-pj1-f77.google.com with SMTP id 98e67ed59e1d1-26b4e3a83a9so2060337a91.2 for ; Tue, 15 Aug 2023 02:15:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692090916; x=1692695716; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=D+iGRWuefmU2hiUid4QGdYR0UnLqwkGiIEu1C3f/EfQ=; b=LZfTfGW6d1Hxcy1NWxhjImw6Dz31rkQmKgc+IVXAp4bW6oJdhsSejbQrGNm0A1kehV vLdZ6a5Kk76X8KHQdq/3gfgKTUUL4RmOSdLd/IHtJZ5MDZNIwSb2whqMRrp+HpkuklIz e0e5qI6iUS5QbetM71zwWU1gPHBCjuGWCHAx1G9zaVFZTbxZk2ntuolVU9+2dOQhiZak C41jJvm4fdSPjKDRHB5ZcGtkj4xaChFhrbgTG0G0ao6zKGSx8CZBVLzejAiGKQGpUYga rUlarrz3wmuzVQS0gcRWF0XRpDiiOTinmgBJWq5/YUzDfxwybpdt1BAZtsIvb7/lPgIX LbjQ== X-Gm-Message-State: AOJu0YxaY2qiBc5UQvQprYI9dF6mRV5TYNMolUHHMUUoFF0xjbhNEDAq 05mpSzQ+jNaQtWg+Sep41Tp60xTY61knXAvU1qzGvI9Qx95i X-Google-Smtp-Source: AGHT+IH9Pz6z43oMnXdI0xY8eQPyvoGkbhYumOmSRX9gEC4UXvhJLnTswhlaJzcU5cCPpBg9a5uPT9cIokiDiBeB3fRQBdS/jRWl MIME-Version: 1.0 X-Received: by 2002:a17:90a:f306:b0:268:2de3:e6b2 with SMTP id ca6-20020a17090af30600b002682de3e6b2mr2876129pjb.5.1692090915735; Tue, 15 Aug 2023 02:15:15 -0700 (PDT) Date: Tue, 15 Aug 2023 02:15:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f5ce160602f29dd6@google.com> Subject: [syzbot] [btrfs?] memory leak in btrfs_ref_tree_mod From: syzbot To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 25aa0bebba72 Merge tag 'net-6.5-rc6' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=169577fda80000 kernel config: https://syzkaller.appspot.com/x/.config?x=2bf8962e4f7984f4 dashboard link: https://syzkaller.appspot.com/bug?extid=d66de4cbf532749df35f compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148191c3a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/76b0857d2814/disk-25aa0beb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a01574755257/vmlinux-25aa0beb.xz kernel image: https://storage.googleapis.com/syzbot-assets/262002db770e/bzImage-25aa0beb.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/b93cffaa6717/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d66de4cbf532749df35f@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888129851240 (size 64): comm "syz-executor.0", pid 5069, jiffies 4294977377 (age 16.480s) hex dump (first 32 bytes): 01 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 00 ................ backtrace: [] kmalloc_trace+0x25/0x90 mm/slab_common.c:1076 [] kmalloc include/linux/slab.h:582 [inline] [] btrfs_ref_tree_mod+0x211/0xb80 fs/btrfs/ref-verify.c:768 [] btrfs_free_tree_block+0x116/0x450 fs/btrfs/extent-tree.c:3250 [] __btrfs_cow_block+0x6a5/0xa30 fs/btrfs/ctree.c:601 [] btrfs_cow_block+0x154/0x2b0 fs/btrfs/ctree.c:712 [] commit_cowonly_roots+0x8c/0x3f0 fs/btrfs/transaction.c:1276 [] btrfs_commit_transaction+0x999/0x15c0 fs/btrfs/transaction.c:2410 [] btrfs_commit_super+0x86/0xb0 fs/btrfs/disk-io.c:4195 [] close_ctree+0x543/0x730 fs/btrfs/disk-io.c:4349 [] generic_shutdown_super+0x9e/0x1c0 fs/super.c:499 [] kill_anon_super+0x19/0x30 fs/super.c:1110 [] btrfs_kill_super+0x1d/0x30 fs/btrfs/super.c:2138 [] deactivate_locked_super+0x46/0xd0 fs/super.c:330 [] deactivate_super fs/super.c:361 [inline] [] deactivate_super+0x9c/0xb0 fs/super.c:357 [] cleanup_mnt+0x121/0x210 fs/namespace.c:1254 [] task_work_run+0x8f/0xe0 kernel/task_work.c:179 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup