------------[ cut here ]------------ WARNING: CPU: 0 PID: 15942 at arch/x86/include/asm/pgtable.h:403 pte_uffd_wp arch/x86/include/asm/pgtable.h:403 [inline] WARNING: CPU: 0 PID: 15942 at arch/x86/include/asm/pgtable.h:403 pagemap_page_category fs/proc/task_mmu.c:1785 [inline] WARNING: CPU: 0 PID: 15942 at arch/x86/include/asm/pgtable.h:403 pagemap_scan_pmd_entry+0x1083/0x23f0 fs/proc/task_mmu.c:2180 Modules linked in: CPU: 0 PID: 15942 Comm: syz-executor.4 Not tainted 6.7.0-rc2-syzkaller-00029-g9b6de136b5f0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:pte_uffd_wp arch/x86/include/asm/pgtable.h:403 [inline] RIP: 0010:pagemap_page_category fs/proc/task_mmu.c:1785 [inline] RIP: 0010:pagemap_scan_pmd_entry+0x1083/0x23f0 fs/proc/task_mmu.c:2180 Code: e9 35 f6 ff ff e8 6d 28 76 ff 49 89 dc 31 ff 41 83 e4 02 4c 89 e6 e8 ec 23 76 ff 4d 85 e4 0f 84 e4 03 00 00 e8 4e 28 76 ff 90 <0f> 0b 90 41 be 08 00 00 00 e9 c9 f5 ff ff e8 3a 28 76 ff 41 83 e7 RSP: 0018:ffffc9000409f870 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000049f63c67 RCX: ffffffff821161d4 RDX: ffff888028a5bb80 RSI: ffffffff821161e2 RDI: 0000000000000007 RBP: ffffc9000409fdb0 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000002 R12: 0000000000000002 R13: 0000000000000000 R14: 000000000000000a R15: ffff8880255a2fb8 FS: 00007f473bc5c6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020bd1000 CR3: 000000001ffdf000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: walk_pmd_range mm/pagewalk.c:143 [inline] walk_pud_range mm/pagewalk.c:221 [inline] walk_p4d_range mm/pagewalk.c:256 [inline] walk_pgd_range+0xa48/0x1870 mm/pagewalk.c:293 __walk_page_range+0x630/0x770 mm/pagewalk.c:395 walk_page_range+0x626/0xa80 mm/pagewalk.c:521 do_pagemap_scan+0x40d/0xcd0 fs/proc/task_mmu.c:2437 do_pagemap_cmd+0x5e/0x80 fs/proc/task_mmu.c:2478 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f473ae7cae9 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:00007f473bc5c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f473af9c050 RCX: 00007f473ae7cae9 RDX: 0000000020000180 RSI: 00000000c0606610 RDI: 0000000000000003 RBP: 00007f473aec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f473af9c050 R15: 00007f473b0bfa48