From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 8CA53C8DD for ; Thu, 21 Mar 2024 04:04:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710993866; cv=none; b=al36C1quxa+xV72K1Aj39UxhSVBFww8RtB7h6rlDu4LhWtlKkEQYa6zhfotdkIzNb2wv+PMY1egAsuUw7S/ft/7nMZbgjkikRdrKQQ5QVjSGFDgKtGIpjdxIjMPq9nlkOl1MCLSSEFIvqHMU+7WCjbwMLIeNjWqktZbSb97NzJw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710993866; c=relaxed/simple; bh=z8kelRcQLfPHXxdv8BDjPeC6bTlw3ySDChzBqljKi+s=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=QkA1eWkPeTxaOjSc9IPRIxVJL1rF8HfmHP726ZbcTSh6Hnn4jcSx/pW/lsTAbUWI/SMAy+kGRtAlIH7XwDB65/X0+YD+OlXvpDGRh4gNiSjQ84gR3NaIzWkPrGijiK3ELK+vUwdvnAkqzIFqJLQwt+rjFHbI69sl3vJBg6l9HzE= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-7c9aa481ce4so45428839f.3 for ; Wed, 20 Mar 2024 21:04:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710993863; x=1711598663; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=ze7pScqmttd08u401NsE35waZFhqUwBemOvcE4kIuZo=; b=IpiHKAisa9dWaQncUwO8L3xuOgdUGIZqnpVm6VPi/ZsTYwMidFpET7K5OVqNbZXYVT FTwMukHhlq1+5fVdNLiyrGA3YWTYjfmXmS2/1zS1zYqOU4e69lb2DRK7Upqwb2lmDENF 4dVm6H1bh2IA3gFb92JPxgFY+rbez4XL5zDyVrWDuXJ49wymy9wcGpigkzOzQVM1JgfR wC5okJN7Tpc9X7L7GYDS2WOc4iOBs+GBSGVe877R/9dncR2JwwUMCrQggWQ973cTqYik jpHXy2wA7LzFvgG7uMESv1ZGWNmwRQS4mZMjeeagthvK55HynKNtYgLpf2gx2eTazx1z AELQ== X-Forwarded-Encrypted: i=1; AJvYcCWPKqC6FMn5D6xCD44JIM3KuudAXtai946nCzd4ogx7A8pVFLNxmJUHMEAyIue4Rdd7VEDkXtyhLBYyAKmZngTCC0PsF6iD6Bk0QScr X-Gm-Message-State: AOJu0Yzn/8qX7wPl/o1z1hU+TvADN2JYSB2C8iKVPmtgh4r1HPLqP7F2 cDGjO/nkaBETgOaJwzgi6IbONoaZpSGhVQBxKGEaJ2uYS+PpuHJQtXbIZpaZ6inJMTeFykzQj6t wMfe1PlED4PH89nfcxEtMbqV89Kalbf3MuP5szQOIalfPm21hvh/Qp2w= X-Google-Smtp-Source: AGHT+IGHnZr9WAy0fXFR+27NR+3TxjGd0osQBBaXNa8QNrDvyJsx7hXAy+HAonpm4PQLBwJkQwFwsUK7gYaO1SeprY9/VWyn4Ic+ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:2409:b0:474:c3b5:a8b7 with SMTP id z9-20020a056638240900b00474c3b5a8b7mr1330109jat.6.1710993863141; Wed, 20 Mar 2024 21:04:23 -0700 (PDT) Date: Wed, 20 Mar 2024 21:04:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006cfe98061423cde7@google.com> Subject: [syzbot] [mm?] kernel BUG in const_folio_flags From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, muchun.song@linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 78c3925c048c Merge tag 'soc-late-6.9' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1267d879180000 kernel config: https://syzkaller.appspot.com/x/.config?x=f3c2635ded15fbc9 dashboard link: https://syzkaller.appspot.com/bug?extid=3b9148f91b7869120e81 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-78c3925c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cf2bceeccde3/vmlinux-78c3925c.xz kernel image: https://storage.googleapis.com/syzbot-assets/fc938dfaea6d/bzImage-78c3925c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3b9148f91b7869120e81@syzkaller.appspotmail.com veth_newlink+0x627/0xa10 drivers/net/veth.c:1895 rtnl_newlink_create net/core/rtnetlink.c:3494 [inline] __rtnl_newlink+0x119c/0x1960 net/core/rtnetlink.c:3714 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3727 rtnetlink_rcv_msg+0x3c7/0xe60 net/core/rtnetlink.c:6595 ------------[ cut here ]------------ kernel BUG at include/linux/page-flags.h:315! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 42 Comm: kcompactd0 Not tainted 6.8.0-syzkaller-11725-g78c3925c048c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:const_folio_flags+0x1bd/0x1f0 include/linux/page-flags.h:315 Code: 41 83 e4 01 44 89 e6 e8 b1 e6 a9 ff 45 84 e4 0f 85 c4 fe ff ff e8 23 ec a9 ff 48 c7 c6 e0 07 1b 8b 48 89 ef e8 34 2e ed ff 90 <0f> 0b e8 8c 6b 06 00 e9 66 fe ff ff 48 89 ef e8 7f 6b 06 00 eb b6 RSP: 0018:ffffc9000068f7f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc9000068f698 RDX: ffff88801744c880 RSI: ffffffff81e4265c RDI: ffffffff8b6f0060 RBP: ffffea0000a04c00 R08: 0000000000000000 R09: fffffbfff1f3deca R10: ffffffff8f9ef657 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0000a04dc0 R14: 0000000000028137 R15: ffffc9000068fbe8 FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe623b9138 CR3: 000000001c22c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_test_hugetlb include/linux/page-flags.h:875 [inline] PageHuge+0x219/0x2b0 mm/hugetlb.c:2174 isolate_migratepages_block+0x4a0/0x5110 mm/compaction.c:1004 isolate_migratepages mm/compaction.c:2182 [inline] compact_zone+0x1a5c/0x4280 mm/compaction.c:2629 kcompactd_do_work+0x340/0x720 mm/compaction.c:3100 kcompactd+0x8d7/0xde0 mm/compaction.c:3199 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:const_folio_flags+0x1bd/0x1f0 include/linux/page-flags.h:315 Code: 41 83 e4 01 44 89 e6 e8 b1 e6 a9 ff 45 84 e4 0f 85 c4 fe ff ff e8 23 ec a9 ff 48 c7 c6 e0 07 1b 8b 48 89 ef e8 34 2e ed ff 90 <0f> 0b e8 8c 6b 06 00 e9 66 fe ff ff 48 89 ef e8 7f 6b 06 00 eb b6 RSP: 0018:ffffc9000068f7f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc9000068f698 RDX: ffff88801744c880 RSI: ffffffff81e4265c RDI: ffffffff8b6f0060 RBP: ffffea0000a04c00 R08: 0000000000000000 R09: fffffbfff1f3deca R10: ffffffff8f9ef657 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0000a04dc0 R14: 0000000000028137 R15: ffffc9000068fbe8 FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe623b9138 CR3: 000000001c22c000 CR4: 0000000000350ef0 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