------------[ cut here ]------------
WARNING: CPU: 1 PID: 2506 at arch/x86/include/asm/pgtable.h:403 pte_uffd_wp arch/x86/include/asm/pgtable.h:403 [inline]
WARNING: CPU: 1 PID: 2506 at arch/x86/include/asm/pgtable.h:403 pagemap_page_category fs/proc/task_mmu.c:1785 [inline]
WARNING: CPU: 1 PID: 2506 at arch/x86/include/asm/pgtable.h:403 pagemap_scan_pmd_entry+0x1083/0x23f0 fs/proc/task_mmu.c:2180
Modules linked in:
CPU: 1 PID: 2506 Comm: syz-executor.2 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
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 d0 76 ff 49 89 dc 31 ff 41 83 e4 02 4c 89 e6 e8 ec cb 76 ff 4d 85 e4 0f 84 e4 03 00 00 e8 4e d0 76 ff 90 <0f> 0b 90 41 be 08 00 00 00 e9 c9 f5 ff ff e8 3a d0 76 ff 41 83 e7
RSP: 0018:ffffc9000ce87870 EFLAGS: 00010283
RAX: 0000000000001943 RBX: 0000000054702c67 RCX: ffffc900059c4000
RDX: 0000000000040000 RSI: ffffffff820fb012 RDI: 0000000000000007
RBP: ffffc9000ce87db0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000002 R12: 0000000000000002
R13: 0000000000000000 R14: 000000000000000a R15: ffff888030147000
FS:  00007f2ab72856c0(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000160 CR3: 00000000671c7000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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+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: 0033:0x7f2ab647cba9
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:00007f2ab72850c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2ab659bf80 RCX: 00007f2ab647cba9
RDX: 0000000020000080 RSI: 00000000c0606610 RDI: 0000000000000003
RBP: 00007f2ab64c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2ab659bf80 R15: 00007fffea47af18
 </TASK>