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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" X-Rspamd-Queue-Id: ED623180008 X-Rspam-User: X-Stat-Signature: sz48z9514a8rm8b1fdb7ajtr47usdmt5 X-Rspamd-Server: rspam01 X-HE-Tag: 1710993863-908564 X-HE-Meta: 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 9vOx5pJm UJ8TnmecFA8SKnh51xZ+gmVrtNvKBPQbRuPIYaHlTIv16geePrhLY2ISYr5ixJf5+J0VI8+0YGH5KxsySB7oU6p7d7LLg8KMRWFb/YodJoy4reZIU6GU/OjbRbEZLlCpRAeU7OS5oqb2BwEvkz+ifc6w8VfOXKxxjU4Frwy9ZLT+ylJaNxnw8+TeHkJsaMijGQzxLpuO94OGlGWem/J3C0WJrGu8VLAVIyLk7ZdkPmFF0GEmdSCeHpcGNS85/2dGbEu/Q1V1Fcbl0D4dAW/ORjmsrjhfIxMNt1Ge2v662hO8opfeOlZIHEkrCLQNYN7f/hAWmGaTxpgc9j9zpXSJTkiuFRp6DqWqZsIawGxiH5pljHxTHlQXLoCCgxWQpj6smT/XPCdf1vP33diF77mgvfAlbHxLn/DtImWIT7LxJ9QTUMypRpLILruaBtkueijUl+46vAySKiG3bvETHO90ZxmYm7Xd4/Ov+vS8lyJO83BQlW7tnUyFv/HAlqn6REn5iv7nVjMBhUXbGH2IEYFnWHCRC0lkEDp/9g5UeEThEnpHV8FHiAMxCWbHB4Hxh5KTwDrip1veRJrSqRFHbEMyYTZII4tpFG6W8ktzXN+BOood1Au37P6faUBp6o5l7+tbOuKjyx6eHj5YlbpdebMRgEiYx8nqcAQGvXKz02oenP8/MGL7ymbvHh7GZPuwKgf7TkgJDUn9a+nNPEImBrL0EO5MrDrlpTV61cUFuOBnG9wamPzlyvRxPoOvM2cYkl3ufN2k90ADBEm1ASHVSdoy14JTbQ+FYIBOLNpN00J2CHU4MXN1Hwhj+huVMFcsy5R/KMj+aBpVzeZpx+/BWNLATr/koHRoDtCQr90dbiP99LGmqc9agdEYZ+3/DUMMfRZxcb6IanxJCfw+HUt7l3vodHJ7FVtZEveyvdrQ9OY+OXrvwe0ASSpmRVxrO72ajaIRDroTADJgXExDcDD7c6yaOvDIgEPt3 wKjS2o4E QpufY84B08yVkKtXanFAFfq4Mw3E7hESxWWNmPeokypISzxeFmnvlHxHGjk7K5Z+J4vs+DGOt2xfPgGsNF6sWqhITUubfDgJrJNC5vDS9M87bm7YCZs+TuqqUK1uCCg0XpubWoUM8NFSdPGX7U7mAkif8ah5c991OxwzfvnbYjXNxRTNqTd1aWl3fYLctikasBd5QC+HuSw/Lu4YjylKeNJemJtc7rJmOzUNknFYXSksxsCkpvdsBYC7XnmEGIDhYePIDb+qdmJZpmAQ+9o9KDMnw5LIl3NxwghBV4o2b2SCDDELJgzel1EfhM7tLVaefktdwNDgDRajpQKZvRDHpdTlmLL74ZADDgXtZWisx44= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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