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 BDB3CC77B78 for ; Wed, 19 Apr 2023 18:52:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230484AbjDSSwv (ORCPT ); Wed, 19 Apr 2023 14:52:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229572AbjDSSwt (ORCPT ); Wed, 19 Apr 2023 14:52:49 -0400 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3EDA44A6 for ; Wed, 19 Apr 2023 11:52:47 -0700 (PDT) Received: by mail-il1-f206.google.com with SMTP id e9e14a558f8ab-32abae1ff3aso350435ab.2 for ; Wed, 19 Apr 2023 11:52:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681930367; x=1684522367; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=vZQm9ajXkGotCE4OxQ7g7sW/rOm7TAAFTPwqwxq0WKc=; b=M+ZaFmYhnvb617x/rMk64YhYAC3kLuGF9DZ/lNcNSBT/2ea5e1VhcJN4BlF+xG+Im/ Xzck5hMCrPxAznZn/PT/mqi4ofm4Flb0n1lw93ewyfd2hcMoujMvL1DA91KdEbrLF7hP 8lNxOHMSrqyAwA/2jgNdh3O9zj9J3Hz6KsqO5Q94zfbg2cngrNazySD3tFRdTpLBGtzA 3DUMNFctPW/M+0fx2w6ls1JPRzQb76xzmllXW5CxXH2laVOt3oVZcgahs4Yo6I3p4izL GXG4HkMgr2dRJ23wWPYTuivqUt/VxXlUG/bA9S5wbyPmNxEX+iEIqb25tml2ekau5NIp 3iIQ== X-Gm-Message-State: AAQBX9dzbkVEKp0GrfEuzPvCY9pA4rIlemosB7Uid28b1+eitKaZ9P5X 7fYZCvbgpxYzUA9iy8OHnMtx5Jl/kq+D0CAvXlh0c51Dz/UX X-Google-Smtp-Source: AKy350aloVDDl5G+HPKwo89i1D7agjSsVu6G7IrkD2bdBIsH+IvUhYRKiYoYh9s6nvo1ZrMxrK7m05j69InN0TR9Zv5spcF/Csse MIME-Version: 1.0 X-Received: by 2002:a92:d482:0:b0:328:7b75:a5fe with SMTP id p2-20020a92d482000000b003287b75a5femr391854ilg.5.1681930367357; Wed, 19 Apr 2023 11:52:47 -0700 (PDT) Date: Wed, 19 Apr 2023 11:52:47 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000015760b05f9b4eee9@google.com> Subject: [syzbot] [ext4?] WARNING in ext4_iomap_overwrite_begin From: syzbot To: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 7a934f4bd7d6 Merge tag 'riscv-for-linus-6.3-rc7' of git://.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16d9b923c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=759d5e665e47a55 dashboard link: https://syzkaller.appspot.com/bug?extid=08106c4b7d60702dbc14 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ef1965f1c04f/disk-7a934f4b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/1ac35470cc62/vmlinux-7a934f4b.xz kernel image: https://storage.googleapis.com/syzbot-assets/b0021ea0d165/bzImage-7a934f4b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+08106c4b7d60702dbc14@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 30014 at fs/ext4/inode.c:3574 ext4_iomap_overwrite_begin+0x7d/0xa0 Modules linked in: CPU: 1 PID: 30014 Comm: syz-executor.1 Not tainted 6.3.0-rc6-syzkaller-00173-g7a934f4bd7d6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:ext4_iomap_overwrite_begin+0x7d/0xa0 fs/ext4/inode.c:3574 Code: 2d 0f b7 1b bf 02 00 00 00 89 de e8 1d 15 52 ff 83 fb 02 75 10 e8 f3 11 52 ff 89 e8 5b 41 5c 41 5e 41 5f 5d c3 e8 e3 11 52 ff <0f> 0b eb ec 89 d9 80 e1 07 fe c1 38 c1 7c c8 48 89 df e8 3c d2 a7 RSP: 0018:ffffc9000a4cf0b0 EFLAGS: 00010293 RAX: ffffffff823864dd RBX: 0000000000000000 RCX: ffff88807d391d40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 00000000ffffff8b R08: ffffffff823864c3 R09: ffffed100f18877a R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803d4fd2f0 R13: ffff88803d4fd2f0 R14: 0000000000010000 R15: 0000000000090000 FS: 00007fe681b6e700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2767115dc9 CR3: 000000002b556000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x677/0xec0 fs/iomap/iter.c:91 __iomap_dio_rw+0xd74/0x20d0 fs/iomap/direct-io.c:594 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:683 ext4_dio_write_iter fs/ext4/file.c:597 [inline] ext4_file_write_iter+0x1509/0x1930 fs/ext4/file.c:708 do_iter_write+0x6ea/0xc50 fs/read_write.c:861 iter_file_splice_write+0x843/0xfe0 fs/splice.c:778 do_splice_from fs/splice.c:856 [inline] direct_splice_actor+0xe7/0x1c0 fs/splice.c:1022 splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:977 do_splice_direct+0x283/0x3d0 fs/splice.c:1065 do_sendfile+0x620/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe680e8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007fe681b6e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe680fabf80 RCX: 00007fe680e8c169 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005 RBP: 00007fe680ee7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc42fc2daf R14: 00007fe681b6e300 R15: 0000000000022000 --- This report is generated by a bot. 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