------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:80! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11762 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:page_table_check_clear.part.0+0x31c/0x380 mm/page_table_check.c:80 Code: c1 43 04 8d 58 ff 31 ff 89 de e8 9f 63 a2 ff 85 db 0f 89 7c fe ff ff e8 72 67 a2 ff 0f 0b e8 6b 67 a2 ff 0f 0b e8 64 67 a2 ff <0f> 0b e8 5d 67 a2 ff 0f 0b e8 56 67 a2 ff 0f 0b 48 c7 c7 40 b7 e6 RSP: 0018:ffffc9000312f620 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888014968ca0 RCX: 0000000000000000 RDX: ffff888053dc1dc0 RSI: ffffffff81e1dd7c RDI: 0000000000000005 RBP: ffff888014968c60 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de27000 CR3: 0000000021106000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_table_check_clear include/linux/mmzone.h:2003 [inline] __page_table_check_pte_clear+0x265/0x2b0 mm/page_table_check.c:155 page_table_check_pte_clear include/linux/page_table_check.h:55 [inline] ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1086 [inline] zap_pte_range mm/memory.c:1413 [inline] zap_pmd_range mm/memory.c:1563 [inline] zap_pud_range mm/memory.c:1592 [inline] zap_p4d_range mm/memory.c:1613 [inline] unmap_page_range+0x2aa6/0x38e0 mm/memory.c:1634 unmap_single_vma+0x19a/0x2b0 mm/memory.c:1680 unmap_vmas+0x234/0x380 mm/memory.c:1719 exit_mmap+0x190/0x930 mm/mmap.c:3111 __mmput+0x128/0x4c0 kernel/fork.c:1351 mmput+0x60/0x70 kernel/fork.c:1373 exit_mm kernel/exit.c:564 [inline] do_exit+0x9d7/0x2960 kernel/exit.c:858 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021 get_signal+0x2315/0x25b0 kernel/signal.c:2874 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f25e348c169 Code: Unable to access opcode bytes at 0x7f25e348c13f. RSP: 002b:00007f25e4191218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f25e35abf88 RCX: 00007f25e348c169 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f25e35abf8c RBP: 00007f25e35abf80 R08: 00007ffe6b7e0080 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00007f25e35abf8c R13: 00007f25e36cfb1f R14: 00007f25e4191300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:page_table_check_clear.part.0+0x31c/0x380 mm/page_table_check.c:80 Code: c1 43 04 8d 58 ff 31 ff 89 de e8 9f 63 a2 ff 85 db 0f 89 7c fe ff ff e8 72 67 a2 ff 0f 0b e8 6b 67 a2 ff 0f 0b e8 64 67 a2 ff <0f> 0b e8 5d 67 a2 ff 0f 0b e8 56 67 a2 ff 0f 0b 48 c7 c7 40 b7 e6 RSP: 0018:ffffc9000312f620 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888014968ca0 RCX: 0000000000000000 RDX: ffff888053dc1dc0 RSI: ffffffff81e1dd7c RDI: 0000000000000005 RBP: ffff888014968c60 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de27000 CR3: 0000000021106000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400