------------[ cut here ]------------
WARNING: CPU: 1 PID: 535 at arch/x86/include/asm/pgtable.h:404 pte_uffd_wp arch/x86/include/asm/pgtable.h:404 [inline]
WARNING: CPU: 1 PID: 535 at arch/x86/include/asm/pgtable.h:404 pagemap_scan_pmd_entry+0xa15/0x2e10 fs/proc/task_mmu.c:2195
Modules linked in:
CPU: 1 PID: 535 Comm: syz-executor.3 Not tainted 6.8.0-rc3-syzkaller-00041-g547ab8fc4cb0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:pte_uffd_wp arch/x86/include/asm/pgtable.h:404 [inline]
RIP: 0010:pagemap_scan_pmd_entry+0xa15/0x2e10 fs/proc/task_mmu.c:2195
Code: 2d 67 ff 83 e3 42 bf 40 00 00 00 48 89 de e8 b2 32 67 ff 48 83 fb 40 0f 85 6d fe ff ff e8 c3 2d 67 ff eb 05 e8 bc 2d 67 ff 90 <0f> 0b 90 e9 5d fe ff ff e8 ae 2d 67 ff 31 c0 48 89 44 24 20 4d 89
RSP: 0018:ffffc900099e75c0 EFLAGS: 00010283
RAX: ffffffff822c3974 RBX: 07fffffffffd5c0a RCX: 0000000000040000
RDX: ffffc9000aa1a000 RSI: 00000000000007df RDI: 00000000000007e0
RBP: ffffc900099e7830 R08: ffffffff822c393b R09: fffff5200133ce88
R10: dffffc0000000000 R11: fffff5200133ce88 R12: dffffc0000000000
R13: 000000002007d000 R14: ffffc900099e7740 R15: ffff888097af53e0
FS:  00007fe4a77a46c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe4a77a4d58 CR3: 0000000045236000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 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+0xba1/0x17e0 mm/pagewalk.c:293
 __walk_page_range+0x132/0x720 mm/pagewalk.c:395
 walk_page_range+0x4c8/0x6c0 mm/pagewalk.c:521
 do_pagemap_scan fs/proc/task_mmu.c:2471 [inline]
 do_pagemap_cmd+0xb11/0x1340 fs/proc/task_mmu.c:2513
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:857
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fe4a6a7dda9
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:00007fe4a77a40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe4a6bac050 RCX: 00007fe4a6a7dda9
RDX: 00000000200007c0 RSI: 00000000c0606610 RDI: 0000000000000004
RBP: 00007fe4a6aca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe4a6bac050 R15: 00007fe4a6ccfa48
 </TASK>