From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 6818F18FDD5 for ; Sat, 16 Nov 2024 06:37:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731739060; cv=none; b=hBA7ffFsB5mTX9I7mdOBS+YwY8bdW6Dt80qGbYK9VBbV4Y2JhEMmrSXnHgjn+B0E+ibbGSur++Hth+8/qh8dOmZSRXQjUCqKctA8XznIeCmqzi3Hpu4jQYj3q0QC7c2lnnoQ/GrNXMvsj1MES52ZF5IZMasJfkv9LD0lalVt1ug= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731739060; c=relaxed/simple; bh=dpPXiqYL44/ZesfBlXXSsLrdC1yn9QX2ULNO1qyTeUU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=OAiIBAjzRZTf3HsfEQi91Yv0ygaHsvKZEdv51HdjLYTLDsSL+cwILVBCqUeVwV5cRixSeCJegktlRIplkov3UnZWMD4cu18qNiTP+VMftnkP6GtVzQXhmPRTW7Spea/ZkIo50wVfWNlpQqzuP7Oh4JjEAQdhIw0M3+YPterTF0s= 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=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-83ab434c629so34235139f.1 for ; Fri, 15 Nov 2024 22:37:38 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731739057; x=1732343857; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=1fk3LLYvVIMDlXis1K7JTYtu6V6565fK4YrzMnuiO6I=; b=gwgN46rRqwLkyB58ZvkKRK4NM5R4suOAK6mtbMPpMxziGu3fmIsUJDZj8mrTjjeV7U 9Juf/bHiSqaKC+BhLUFqzZS+n+VYbTKi6rJXWVTA6WyaX6+fsuACJg1tPoWiyyuDJ2QN Ii/GiqSROm4q6KpYfxF/84rLYUkb0Dk2yMuaiz3IEuqPSSzieell248A0KhRbMBCGVES 1rwSNURV50bDrxoLbLRicyUREe4d30e+sR6ZdtSKVyrCS1W5Lsy/fPkJV/wf3EbUtEEu MWurHKXqHcrJ1IgE3snIFbiny3uIUUK9yr70J1AcPl9DVOOabFeEeFz4nH/JZQT/VSH4 eVlw== X-Forwarded-Encrypted: i=1; AJvYcCXOFAuVJ37aRrBrvVj8ZqPHWqENvUiONef6h9SQ6AIrk30iNaFuaGHqgdMunN0T2QQcOr6zs5QpimwSkQ==@lists.linux.dev X-Gm-Message-State: AOJu0YwwQuVAsOTIOKIhlTEeRHP7ohiceK5XsREmfVETWRp0C4g+5Bbu S8IhioM92+WCoifB2Hq++YWU22I4JVC9nKiWXCXB6+2eubF8RjoUUiFR9fyL6IIC2HIBjrWPunO Ur0xHORcn/VEphZGe5f6psw3kVMgsNjyWLLpJDovONXrk9CKEcH+sedE= X-Google-Smtp-Source: AGHT+IGxyPG9EdGhSS2ON4E0MF9BtTUhNPnAdiK8c9vDMWwiBTSCILG7QHKfOiQbSRrUU+fUUW99EfK8QJM4CEwmCseXR2tiC7Uu Precedence: bulk X-Mailing-List: ocfs2-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a89:b0:3a5:e532:799d with SMTP id e9e14a558f8ab-3a74800f3efmr66025265ab.3.1731739057568; Fri, 15 Nov 2024 22:37:37 -0800 (PST) Date: Fri, 15 Nov 2024 22:37:37 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67383db1.050a0220.85a0.000f.GAE@google.com> Subject: [syzbot] [ocfs2?] kernel BUG in ocfs2_write_begin_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" Hello, syzbot found the following issue on: HEAD commit: 2d5404caa8c7 Linux 6.12-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=133a335f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24 dashboard link: https://syzkaller.appspot.com/bug?extid=7c88f40b30ec95353951 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/a2d329b82126/disk-2d5404ca.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/37a04ca225dd/vmlinux-2d5404ca.xz kernel image: https://storage.googleapis.com/syzbot-assets/4f837ce9d9dc/bzImage-2d5404ca.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7c88f40b30ec95353951@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1410! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 6836 Comm: syz.6.125 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:ocfs2_populate_write_desc fs/ocfs2/aops.c:1410 [inline] RIP: 0010:ocfs2_write_begin_nolock+0x4da3/0x4ec0 fs/ocfs2/aops.c:1707 Code: e8 92 d7 11 fe 48 89 df e8 da 60 0f 00 e9 b5 fc ff ff e8 80 d7 11 fe e9 ab fc ff ff e8 76 d7 11 fe 90 0f 0b e8 6e d7 11 fe 90 <0f> 0b e8 66 d7 11 fe 90 0f 0b e8 5e d7 11 fe 90 0f 0b e8 56 d7 11 RSP: 0000:ffffc90004466f60 EFLAGS: 00010293 RAX: ffffffff83830242 RBX: 0000000000000002 RCX: ffff88801e743c00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90004467540 R08: ffffffff8382c05f R09: ffffffff8382c025 R10: 0000000000000006 R11: ffff88801e743c00 R12: 0000000000000000 R13: 1ffff1100ffea802 R14: 0000000000000000 R15: 0000000000000000 FS: 000055559101b500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000034ff8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __ocfs2_page_mkwrite fs/ocfs2/mmap.c:93 [inline] ocfs2_page_mkwrite+0x752/0xed0 fs/ocfs2/mmap.c:144 do_page_mkwrite+0x198/0x480 mm/memory.c:3162 wp_page_shared mm/memory.c:3563 [inline] do_wp_page+0x23d3/0x52d0 mm/memory.c:3713 handle_pte_fault+0x10e3/0x6820 mm/memory.c:5782 __handle_mm_fault mm/memory.c:5909 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6077 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fb6b79461d8 Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5 RSP: 002b:00007ffc5c043b08 EFLAGS: 00010206 RAX: 0000000020000000 RBX: 0000000000000004 RCX: 006c7274635f6962 RDX: 000000000000000e RSI: 6962752f7665642f RDI: 0000000020000000 RBP: 00007fb6b7b37a80 R08: 00007fb6b7800000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000009 R12: 000000000001ceeb R13: 00007ffc5c043c10 R14: 0000000000000032 R15: fffffffffffffffe Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_populate_write_desc fs/ocfs2/aops.c:1410 [inline] RIP: 0010:ocfs2_write_begin_nolock+0x4da3/0x4ec0 fs/ocfs2/aops.c:1707 Code: e8 92 d7 11 fe 48 89 df e8 da 60 0f 00 e9 b5 fc ff ff e8 80 d7 11 fe e9 ab fc ff ff e8 76 d7 11 fe 90 0f 0b e8 6e d7 11 fe 90 <0f> 0b e8 66 d7 11 fe 90 0f 0b e8 5e d7 11 fe 90 0f 0b e8 56 d7 11 RSP: 0000:ffffc90004466f60 EFLAGS: 00010293 RAX: ffffffff83830242 RBX: 0000000000000002 RCX: ffff88801e743c00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90004467540 R08: ffffffff8382c05f R09: ffffffff8382c025 R10: 0000000000000006 R11: ffff88801e743c00 R12: 0000000000000000 R13: 1ffff1100ffea802 R14: 0000000000000000 R15: 0000000000000000 FS: 000055559101b500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa88b6763b0 CR3: 0000000034ff8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup