------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:90! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5114 Comm: syz.0.0 Not tainted 6.12.0-rc2-syzkaller-00058-g75b607fab38d #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:page_table_check_clear+0x395/0x550 mm/page_table_check.c:90 Code: c1 0f 8c 57 fd ff ff 48 89 df e8 36 25 f3 ff e9 4a fd ff ff e8 ac 73 89 ff 90 0f 0b e8 a4 73 89 ff 90 0f 0b e8 9c 73 89 ff 90 <0f> 0b e8 94 73 89 ff 90 0f 0b e8 8c 73 89 ff 90 0f 0b f3 0f 1e fa RSP: 0018:ffffc900030af1a0 EFLAGS: 00010287 RAX: ffffffff820b7334 RBX: ffff88801b8c8098 RCX: 0000000000040000 RDX: ffffc9000b559000 RSI: 0000000000000fff RDI: 0000000000001000 RBP: 00000000ffffffff R08: ffffffff820b7196 R09: 1ffff11003719013 R10: dffffc0000000000 R11: ffffed1003719014 R12: 0000000000000000 R13: ffff88801b8c8050 R14: 00000000000001fe R15: 1ffffffff34879b4 FS: 00007fb5887f86c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020022e88 CR3: 000000003d954000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_table_check_pmd_clear include/linux/page_table_check.h:57 [inline] pmdp_huge_get_and_clear arch/x86/include/asm/pgtable.h:1390 [inline] pmdp_huge_get_and_clear_full include/linux/pgtable.h:636 [inline] zap_huge_pmd+0x940/0xc40 mm/huge_memory.c:2071 zap_pmd_range mm/memory.c:1719 [inline] zap_pud_range mm/memory.c:1768 [inline] zap_p4d_range mm/memory.c:1789 [inline] unmap_page_range+0x762/0x40e0 mm/memory.c:1810 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1900 unmap_region+0x214/0x380 mm/vma.c:354 mmap_region+0x22f9/0x2990 mm/mmap.c:1573 do_mmap+0x8f0/0x1000 mm/mmap.c:496 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb58797dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb5887f8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fb587b35f80 RCX: 00007fb58797dff9 RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 00007fb5879f0296 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb587b35f80 R15: 00007ffff6392fb8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:page_table_check_clear+0x395/0x550 mm/page_table_check.c:90 Code: c1 0f 8c 57 fd ff ff 48 89 df e8 36 25 f3 ff e9 4a fd ff ff e8 ac 73 89 ff 90 0f 0b e8 a4 73 89 ff 90 0f 0b e8 9c 73 89 ff 90 <0f> 0b e8 94 73 89 ff 90 0f 0b e8 8c 73 89 ff 90 0f 0b f3 0f 1e fa RSP: 0018:ffffc900030af1a0 EFLAGS: 00010287 RAX: ffffffff820b7334 RBX: ffff88801b8c8098 RCX: 0000000000040000 RDX: ffffc9000b559000 RSI: 0000000000000fff RDI: 0000000000001000 RBP: 00000000ffffffff R08: ffffffff820b7196 R09: 1ffff11003719013 R10: dffffc0000000000 R11: ffffed1003719014 R12: 0000000000000000 R13: ffff88801b8c8050 R14: 00000000000001fe R15: 1ffffffff34879b4 FS: 00007fb5887f86c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020022e88 CR3: 000000003d954000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400