From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f77.google.com (mail-oo1-f77.google.com [209.85.161.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1B372777F3 for ; Sun, 5 Apr 2026 18:25:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775413533; cv=none; b=oZPaXeuxweqvXGPy7JZAKHgD3yLT+GRvNB5PAkYxzqngEDmbW4HvwSJYWzETEyFO9sFq0hQsCgcg4d/5xspQOTKZU19KuTqCScp0iWVKlvsTzB7v3p43k/9Bl4Qz2rL6sZmAoK6CUFFyjmbWVDss4b3aafA0ovlkBIO/UvLa3Rs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775413533; c=relaxed/simple; bh=3MP8+xtIHpAFuSaWsbUthZXG4XGmGYJ2fzWKryAU/eE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=IDpKUUGw3s1Rq0qibsec/L/FEqlIfRuEhNadxpR85wcaINje7OPiDgNRzz5R57ElwOWp6Ule4d5+iA1KZ0MEDSN1gF4PRzCkTZZYfg9S2LXVAWzxCmrzr9bhD8yNL9P/NA5k7fEEh/NJWz1dUYDIJro5UW9fRj3wNkA7JdiaYIQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f77.google.com with SMTP id 006d021491bc7-67e4258e5b7so9418979eaf.1 for ; Sun, 05 Apr 2026 11:25:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775413530; x=1776018330; h=content-transfer-encoding:to:from:subject:message-id:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=d9tN8zKwuveEo7CHZoqJqzPXz2bqr9oUKmwyNIKP/jM=; b=In+VMkDiYskeLns8BXn6BwKNgcNMuddOX0pe6MKkOjary6EUK7VCWmEuh2/ivgNI38 rDIT5w/FARtM9LfFxQMqAvmCHkJkY+J5k2QsF7i1zmXFpJcQLqcjl/77eniSN/F9hpro IWFZPMuHxlg7en/I3tOfZRjPdihqnvtu/Ev42a+9WS41CB3ex2u0tp8aCbyHCvGiscd0 cKedtpjx3V61qL2WTqOcYu1AmB+KfiGvaYQd9+hCszdG9s6n5YLnbfYzR3753NRwsNRi AstbtnNqXqh95oGEjSvPSlKFPqHbCoGbpwMQbvYoZGDWXmwVc1V0Jph0HErlTYrYjPIE 6Vvg== X-Forwarded-Encrypted: i=1; AJvYcCVWj/mLRrfNX8tRznJgz6vJ6mQ3OpvYgCoONq78y5jAI0RDJON3k2VwRJjMuz3nJgI9mGn2Fa8plnvIJvU=@vger.kernel.org X-Gm-Message-State: AOJu0YxlkAIIKYH05atlYhjVeuN3o5+yX5qjvUc1cZoO+OBvBR0yUQHj FhkuMEAQKDv4V28wSPVXMz5ouMWnCX2XmJyg7q68yJf+C5tZbLbcI8B2FiuwhLLrxUlDv3IYv14 bHbOhoer2Shry5+JYD0tY1Np28uZfj8iQMoz8//LQBiAwavcq89z5Qw7hstM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1686:b0:684:bf61:ed2b with SMTP id 006d021491bc7-684bf61f283mr1919785eaf.14.1775413530562; Sun, 05 Apr 2026 11:25:30 -0700 (PDT) Date: Sun, 05 Apr 2026 11:25:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69d2a91a.a70a0220.a26f2.002d.GAE@google.com> Subject: [syzbot] [ocfs2?] kernel BUG in ocfs2_write_end_nolock From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot found the following issue on: HEAD commit: 3aae9383f42f Merge tag 'input-for-v7.0-rc6' of git://git.k.= . git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=3D102a546a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3Dd46eab0cfd31c21= 4 dashboard link: https://syzkaller.appspot.com/bug?extid=3D43869fdbaad383f31= 077 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-= 1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d90= 0f083ada3/non_bootable_disk-3aae9383.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7c784098744b/vmlinux-= 3aae9383.xz kernel image: https://storage.googleapis.com/syzbot-assets/4dd41ae9f4b7/bzI= mage-3aae9383.xz IMPORTANT: if you fix the issue, please add the following tag to the commit= : Reported-by: syzbot+43869fdbaad383f31077@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode= . (syz.0.0,5324,0):ocfs2_check_set_options:1244 ERROR: Invalid heartbeat moun= t options loop0: detected capacity change from 32768 to 32767 OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_bl= ock *, struct buffer_head *): Invalid dinode #17058: signature =3D 9=EF=BF= =BD=CC=93 On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is= unmounted. OCFS2: File system is now read-only. (syz.0.0,5324,0):ocfs2_assign_bh:2417 ERROR: status =3D -30 (syz.0.0,5324,0):ocfs2_inode_lock_full_nested:2512 ERROR: status =3D -30 (syz.0.0,5324,0):ocfs2_reflink_inodes_lock:4748 ERROR: status =3D -30 ------------[ cut here ]------------ kernel BUG at ./include/linux/highmem.h:577! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full= )=20 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16= .3-2 04/01/2014 RIP: 0010:memcpy_from_folio include/linux/highmem.h:577 [inline] RIP: 0010:ocfs2_write_end_inline fs/ocfs2/aops.c:1915 [inline] RIP: 0010:ocfs2_write_end_nolock+0x1760/0x18f0 fs/ocfs2/aops.c:1949 Code: 90 0f 0b e8 52 c5 09 fe 90 0f 0b e8 4a c5 09 fe 48 8b 7c 24 10 48 c7 = c6 e0 05 12 8c e8 09 1c 6c fd 90 0f 0b e8 31 c5 09 fe 90 <0f> 0b 65 44 8b 2= 5 ea 70 61 0f bf 07 00 00 00 44 89 e6 e8 59 c9 09 RSP: 0018:ffffc9000f1b71e0 EFLAGS: 00010287 RAX: ffffffff83bbff3f RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc90020001000 RSI: 0000000000002df5 RDI: 0000000000002df6 RBP: ffffc9000f1b7350 R08: ffffea000049d947 R09: 1ffffd4000093b28 R10: dffffc0000000000 R11: fffff94000093b29 R12: 0000000000001000 R13: 0000000000002000 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f88812346c0(0000) GS:ffff88808ca49000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7aaef4a000 CR3: 000000001245d000 CR4: 0000000000352ef0 Call Trace: ocfs2_write_end+0x58/0x90 fs/ocfs2/aops.c:2059 generic_perform_write+0x620/0x8f0 mm/filemap.c:4340 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476 iter_file_splice_write+0x9a1/0x10f0 fs/splice.c:736 do_splice_from fs/splice.c:936 [inline] direct_splice_actor+0x101/0x160 fs/splice.c:1159 splice_direct_to_actor+0x53a/0xc70 fs/splice.c:1103 do_splice_direct_actor fs/splice.c:1202 [inline] do_splice_direct+0x195/0x290 fs/splice.c:1228 vfs_copy_file_range+0xb02/0x1370 fs/read_write.c:1634 __do_sys_copy_file_range fs/read_write.c:1683 [inline] __se_sys_copy_file_range+0x2fb/0x480 fs/read_write.c:1650 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f888039c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 f= f 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8881233fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007f8880615fa0 RCX: 00007f888039c819 RDX: 0000000000000004 RSI: 00002000000001c0 RDI: 0000000000000005 RBP: 00007f8880432c91 R08: ffffffffa003e45b R09: 0700000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8880616038 R14: 00007f8880615fa0 R15: 00007ffcbc2fcaf8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_from_folio include/linux/highmem.h:577 [inline] RIP: 0010:ocfs2_write_end_inline fs/ocfs2/aops.c:1915 [inline] RIP: 0010:ocfs2_write_end_nolock+0x1760/0x18f0 fs/ocfs2/aops.c:1949 Code: 90 0f 0b e8 52 c5 09 fe 90 0f 0b e8 4a c5 09 fe 48 8b 7c 24 10 48 c7 = c6 e0 05 12 8c e8 09 1c 6c fd 90 0f 0b e8 31 c5 09 fe 90 <0f> 0b 65 44 8b 2= 5 ea 70 61 0f bf 07 00 00 00 44 89 e6 e8 59 c9 09 RSP: 0018:ffffc9000f1b71e0 EFLAGS: 00010287 RAX: ffffffff83bbff3f RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc90020001000 RSI: 0000000000002df5 RDI: 0000000000002df6 RBP: ffffc9000f1b7350 R08: ffffea000049d947 R09: 1ffffd4000093b28 R10: dffffc0000000000 R11: fffff94000093b29 R12: 0000000000001000 R13: 0000000000002000 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f88812346c0(0000) GS:ffff88808ca49000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bc117cd168 CR3: 000000001245d000 CR4: 0000000000352ef0 --- This report is generated by a bot. 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