process_vm_rw_single_vec mm/process_vm_access.c:105 [inline] process_vm_rw_core.constprop.0+0x43d/0xa10 mm/process_vm_access.c:215 process_vm_rw+0x2ff/0x360 mm/process_vm_access.c:283 __do_sys_process_vm_writev mm/process_vm_access.c:303 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:298 [inline] __x64_sys_process_vm_writev+0xe2/0x1b0 mm/process_vm_access.c:298 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 page_owner free stack trace missing ------------[ cut here ]------------ WARNING: CPU: 1 PID: 18420 at mm/rmap.c:1252 page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252 Modules linked in: CPU: 1 PID: 18420 Comm: syz-executor.1 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:ffffc90005127808 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90003b11000 RDX: 0000000000040000 RSI: ffffffff81cf4673 RDI: ffffffff8ae94460 RBP: ffff888029ca1900 R08: 0000000000000000 R09: fffffbfff1d9d0aa R10: ffffffff8ece8557 R11: 00000000000cf4f8 R12: ffffea0002790000 R13: 00fff800000a0078 R14: 0000000000000000 R15: ffffea0002729848 FS: 00007f0807cc86c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555739d938 CR3: 0000000029c10000 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 move_page_tables+0x1380/0x37c0 mm/mremap.c:618 move_vma+0x6e3/0x1d50 mm/mremap.c:715 __do_sys_mremap+0xf68/0x1730 mm/mremap.c:1165 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: 0033:0x7f0806e7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0807cc80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 RAX: ffffffffffffffda RBX: 00007f0806f9bf80 RCX: 00007f0806e7cae9 RDX: 0000000000400000 RSI: 0000000000002000 RDI: 000000002020e000 RBP: 00007f0806ec847a R08: 000000002082a000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0806f9bf80 R15: 00007ffeca7af2c8