syzbot

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pte_uffd_wp(pte) && pte_write(pte)
WARNING: mm/page_table_check.c:191 at page_table_check_pte_flags mm/page_table_check.c:191 [inline], CPU#0: syz.0.17/5966
WARNING: mm/page_table_check.c:191 at __page_table_check_ptes_set+0x112/0x320 mm/page_table_check.c:207, CPU#0: syz.0.17/5966
Modules linked in:
CPU: 0 UID: 0 PID: 5966 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:page_table_check_pte_flags mm/page_table_check.c:191 [inline]
RIP: 0010:__page_table_check_ptes_set+0x112/0x320 mm/page_table_check.c:207
Code: 4c 89 ee 48 81 e6 9e fe ff ff 41 0f 95 c7 31 ff e8 23 58 8e ff 44 84 fb 75 15 e8 b9 52 8e ff e9 84 00 00 00 e8 af 52 8e ff 90 <0f> 0b 90 eb 79 4c 89 e8 48 d1 e8 49 bf 00 00 00 00 00 00 00 7c 49
RSP: 0018:ffffc90003a3f738 EFLAGS: 00010293
RAX: ffffffff82374941 RBX: 000000004df1cc67 RCX: ffff88803e093e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff9400026f8e1 R12: dffffc0000000000
R13: 000000004df1cc67 R14: ffff88804569bff0 R15: ffff8880391a8000
FS:  0000555577be4500(0000) GS:ffff888125c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000040 CR3: 000000003c390000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
 set_ptes include/linux/pgtable.h:413 [inline]
 do_swap_page+0x3e04/0x4010 mm/memory.c:5089
 handle_pte_fault mm/memory.c:6378 [inline]
 __handle_mm_fault mm/memory.c:6513 [inline]
 handle_mm_fault+0xbd4/0x14d0 mm/memory.c:6682
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x16d4/0x2620 mm/gup.c:1428
 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860
 __mm_populate+0x25f/0x390 mm/gup.c:1963
 do_mlock+0x646/0x750 mm/mlock.c:659
 __do_sys_mlock mm/mlock.c:667 [inline]
 __se_sys_mlock mm/mlock.c:665 [inline]
 __x64_sys_mlock+0x60/0x70 mm/mlock.c:665
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ff690ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd24329218 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007f3ff6b85fa0 RCX: 00007f3ff690ce59
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000200000ffd000
RBP: 00007f3ff69a2d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3ff6b85fac R14: 00007f3ff6b85fa0 R15: 00007f3ff6b85fa0
 </TASK>