Hello, syzbot found the following issue on: HEAD commit: 7fc7222d9680 Add linux-next specific files for 20230918 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13acae54680000 kernel config: https://syzkaller.appspot.com/x/.config?x=79253779bcbe3130 dashboard link: https://syzkaller.appspot.com/bug?extid=6ccbcd15a17f3e1cde38 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/82da18e596ba/disk-7fc7222d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4e71084ae5e0/vmlinux-7fc7222d.xz kernel image: https://storage.googleapis.com/syzbot-assets/f412e76b12e4/bzImage-7fc7222d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6ccbcd15a17f3e1cde38@xxxxxxxxxxxxxxxxxxxxxxxxx destroy_args+0x768/0x990 mm/debug_vm_pgtable.c:1028 debug_vm_pgtable+0x1d79/0x3df0 mm/debug_vm_pgtable.c:1408 do_one_initcall+0x11c/0x640 init/main.c:1232 do_initcall_level init/main.c:1294 [inline] do_initcalls init/main.c:1310 [inline] do_basic_setup init/main.c:1329 [inline] kernel_init_freeable+0x5c2/0x8f0 init/main.c:1547 kernel_init+0x1c/0x2a0 init/main.c:1437 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5053 at mm/rmap.c:1252 page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252 Modules linked in: CPU: 0 PID: 5053 Comm: syz-fuzzer Not tainted 6.6.0-rc2-next-20230918-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252 Code: 48 c1 eb 11 83 e3 01 89 de e8 99 aa b8 ff 84 db 0f 84 36 fb ff ff e8 5c af b8 ff 48 c7 c6 40 89 99 8a 4c 89 e7 e8 dd 02 f7 ff <0f> 0b e9 1b fb ff ff e8 41 af b8 ff 49 89 dd 31 ff 41 81 e5 ff 0f RSP: 0018:ffffc900039af6b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801aad3b80 RSI: ffffffff81cf4673 RDI: ffffffff8ae94460 RBP: ffff88801d45a400 R08: 0000000000000000 R09: fffffbfff1d9d0aa R10: ffffffff8ece8557 R11: 0000000000000001 R12: ffffea00019e0000 R13: 00fff800000a0078 R14: 0000000000000000 R15: ffffea0001a9b988 FS: 000000c000bec490(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00148d000 CR3: 00000000744da000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __split_huge_pmd_locked mm/huge_memory.c:2276 [inline] __split_huge_pmd+0x17d5/0x31e0 mm/huge_memory.c:2320 zap_pmd_range mm/memory.c:1550 [inline] zap_pud_range mm/memory.c:1600 [inline] zap_p4d_range mm/memory.c:1621 [inline] unmap_page_range+0xf13/0x2c00 mm/memory.c:1642 unmap_single_vma+0x194/0x2b0 mm/memory.c:1688 zap_page_range_single+0x324/0x4e0 mm/memory.c:1764 madvise_dontneed_single_vma mm/madvise.c:822 [inline] madvise_dontneed_free mm/madvise.c:903 [inline] madvise_vma_behavior+0xbb0/0x1d00 mm/madvise.c:1042 madvise_walk_vmas+0x1cf/0x2c0 mm/madvise.c:1267 do_madvise+0x333/0x660 mm/madvise.c:1447 __do_sys_madvise mm/madvise.c:1460 [inline] __se_sys_madvise mm/madvise.c:1458 [inline] __x64_sys_madvise+0xaa/0x110 mm/madvise.c:1458 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x46b677 Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 RSP: 002b:000000c000065d70 EFLAGS: 00000202 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 000000000016e000 RCX: 000000000046b677 RDX: 0000000000000004 RSI: 000000000016e000 RDI: 000000c001692000 RBP: 000000c000065db0 R08: 0000000000200000 R09: 000080c0017fffff R10: 0000000001134fa0 R11: 0000000000000202 R12: 0000000001134f20 R13: 0000000000000003 R14: 000000c000007ba0 R15: 0000000001134f60 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
