debug_vm_pgtable+0x1d79/0x3df0 mm/debug_vm_pgtable.c:1408 do_one_initcall+0x117/0x630 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: 1 PID: 5069 at mm/rmap.c:1252 page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252 Modules linked in: CPU: 1 PID: 5069 Comm: syz-fuzzer Not tainted 6.6.0-rc1-next-20230915-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 b9 d7 b8 ff 84 db 0f 84 36 fb ff ff e8 7c dc b8 ff 48 c7 c6 00 83 99 8a 4c 89 e7 e8 dd 02 f7 ff <0f> 0b e9 1b fb ff ff e8 61 dc b8 ff 49 89 dd 31 ff 41 81 e5 ff 0f RSP: 0018:ffffc90003acf6b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88802680bb80 RSI: ffffffff81cf09f3 RDI: ffffffff8ae93c60 RBP: ffff888084e48600 R08: 0000000000000000 R09: fffffbfff1d9cd5a R10: ffffffff8ece6ad7 R11: 0000000000000001 R12: ffffea0001188000 R13: 00fff800000a0078 R14: 0000000000000000 R15: ffffea0001185f08 FS: 000000c0334d6c90(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563ce0f6d131 CR3: 0000000078a21000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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:000000c000c03e08 EFLAGS: 00000202 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 0000000000008000 RCX: 000000000046b677 RDX: 0000000000000004 RSI: 0000000000008000 RDI: 000000c021bce000 RBP: 000000c000c03e48 R08: 0000000000200000 R09: 0000000000000040 R10: 0000000000000007 R11: 0000000000000202 R12: 000000000ff00000 R13: 0000000000000003 R14: 000000c00f95a1a0 R15: 0000000001134f60