------------[ cut here ]------------
WARNING: CPU: 0 PID: 5758 at arch/x86/include/asm/pgtable.h:403 pte_uffd_wp arch/x86/include/asm/pgtable.h:403 [inline]
WARNING: CPU: 0 PID: 5758 at arch/x86/include/asm/pgtable.h:403 hpage_collapse_scan_pmd+0x1034/0x2300 mm/khugepaged.c:1304
Modules linked in:
CPU: 0 PID: 5758 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:pte_uffd_wp arch/x86/include/asm/pgtable.h:403 [inline]
RIP: 0010:hpage_collapse_scan_pmd+0x1034/0x2300 mm/khugepaged.c:1304
Code: 0f 0b e8 af 66 a3 ff 90 0f 0b 90 e9 b5 f3 ff ff e8 a1 66 a3 ff 31 ff 4c 89 fe e8 a7 61 a3 ff 4d 85 ff 74 4b e8 8d 66 a3 ff 90 <0f> 0b 90 bb 09 00 00 00 44 0f b6 6c 24 4f e9 28 f5 ff ff e8 74 66
RSP: 0018:ffffc900036cf9e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000c67 RCX: 0000000000000000
RDX: ffff88807a641dc0 RSI: ffffffff81e79ab3 RDI: 0000000000000007
RBP: ffff888073e12400 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000067701c67 R14: ffff888063813000 R15: 0000000000000002
FS:  00007f8a24c756c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f03014d9ba1 CR3: 00000000756de000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 madvise_collapse+0x77c/0xb80 mm/khugepaged.c:2752
 madvise_vma_behavior+0x204/0x1e60 mm/madvise.c:1096
 madvise_walk_vmas+0x1cf/0x2c0 mm/madvise.c:1270
 do_madvise+0x337/0x660 mm/madvise.c:1450
 __do_sys_madvise mm/madvise.c:1463 [inline]
 __se_sys_madvise mm/madvise.c:1461 [inline]
 __x64_sys_madvise+0xaa/0x110 mm/madvise.c:1461
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3c/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x6f/0xd9
RIP: 0033:0x7f8a23e7dea9
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:00007f8a24c750c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f8a23fac050 RCX: 00007f8a23e7dea9
RDX: 0000000000000019 RSI: 00000000dfc3efff RDI: 00000000203c1000
RBP: 00007f8a23eca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8a23fac050 R15: 00007ffd1f010778
 </TASK>