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 8795BC4321E for ; Mon, 5 Dec 2022 08:14:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232020AbiLEIN6 (ORCPT ); Mon, 5 Dec 2022 03:13:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231959AbiLEINx (ORCPT ); Mon, 5 Dec 2022 03:13:53 -0500 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A592415A1B for ; Mon, 5 Dec 2022 00:13:47 -0800 (PST) Received: by mail-il1-f197.google.com with SMTP id y12-20020a056e021bec00b00302a7d5bc83so11594351ilv.16 for ; Mon, 05 Dec 2022 00:13:47 -0800 (PST) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: a4412fdd49dc error-injection: Add prompt for function erro.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1469bdbd880000 kernel config: https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1 dashboard link: https://syzkaller.appspot.com/bug?extid=d6f9ff86c1d804ba2bc6 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d89247880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b1ca83880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3bbe66b25958/disk-a4412fdd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6851483ca667/vmlinux-a4412fdd.xz kernel image: https://storage.googleapis.com/syzbot-assets/2d5b23cb4616/bzImage-a4412fdd.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/1f178223dd56/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d6f9ff86c1d804ba2bc6@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6559 at fs/btrfs/extent-tree.c:865 lookup_inline_extent_backref+0x8c1/0x13f0 Modules linked in: CPU: 0 PID: 6559 Comm: syz-executor311 Not tainted 6.1.0-rc7-syzkaller-00123-ga4412fdd49dc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:lookup_inline_extent_backref+0x8c1/0x13f0 fs/btrfs/extent-tree.c:865 Code: 98 00 00 00 0f 87 42 0b 00 00 e8 5a 9c 07 fe 4c 8b 6c 24 28 eb 3d 83 7d 28 00 4c 8b 6c 24 28 0f 84 b0 04 00 00 e8 3f 9c 07 fe <0f> 0b 41 bc fb ff ff ff e9 f3 05 00 00 e8 2d 9c 07 fe e9 ca 05 00 RSP: 0018:ffffc90006296e40 EFLAGS: 00010293 RAX: ffffffff8382fbb1 RBX: 0000000000000000 RCX: ffff88801eab1d40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90006296ff0 R08: ffffffff8382f700 R09: ffffed100faf1008 R10: ffffed100faf1008 R11: 1ffff1100faf1007 R12: dffffc0000000000 R13: ffff888075edcd10 R14: ffffc90006296f60 R15: ffff88807d788000 FS: 00007fdb617d5700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055912e028900 CR3: 000000001954b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: insert_inline_extent_backref+0xcc/0x260 fs/btrfs/extent-tree.c:1152 __btrfs_inc_extent_ref+0x108/0x5e0 fs/btrfs/extent-tree.c:1455 btrfs_run_delayed_refs_for_head+0xf00/0x1df0 fs/btrfs/extent-tree.c:1943 __btrfs_run_delayed_refs+0x25f/0x490 fs/btrfs/extent-tree.c:2008 btrfs_run_delayed_refs+0x312/0x490 fs/btrfs/extent-tree.c:2139 qgroup_account_snapshot+0xce/0x340 fs/btrfs/transaction.c:1538 create_pending_snapshot+0xf35/0x2560 fs/btrfs/transaction.c:1800 create_pending_snapshots+0x1a8/0x1e0 fs/btrfs/transaction.c:1868 btrfs_commit_transaction+0x13f0/0x3760 fs/btrfs/transaction.c:2323 create_snapshot+0x4aa/0x7e0 fs/btrfs/ioctl.c:833 btrfs_mksubvol+0x62e/0x760 fs/btrfs/ioctl.c:983 btrfs_mksnapshot+0xb5/0xf0 fs/btrfs/ioctl.c:1029 __btrfs_ioctl_snap_create+0x339/0x450 fs/btrfs/ioctl.c:2184 btrfs_ioctl_snap_create+0x134/0x190 fs/btrfs/ioctl.c:2211 btrfs_ioctl+0x15c/0xc10 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdb6184aa69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdb617d52f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fdb618d57f0 RCX: 00007fdb6184aa69 RDX: 00000000200000c0 RSI: 0000000050009401 RDI: 0000000000000004 RBP: 00007fdb618a226c R08: 00007fdb617d5700 R09: 0000000000000000 R10: 00007fdb617d5700 R11: 0000000000000246 R12: 8000000000000000 R13: 00007fdb618a1270 R14: 0000000100000000 R15: 00007fdb618d57f8 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches