------------[ cut here ]------------
WARNING: CPU: 1 PID: 4378 at arch/x86/mm/pat/memtype.c:1028 get_pat_info arch/x86/mm/pat/memtype.c:1028 [inline]
WARNING: CPU: 1 PID: 4378 at arch/x86/mm/pat/memtype.c:1028 untrack_pfn+0x3af/0x420 arch/x86/mm/pat/memtype.c:1143
Modules linked in:
CPU: 1 PID: 4378 Comm: syz.3.8 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:get_pat_info arch/x86/mm/pat/memtype.c:1028 [inline]
RIP: 0010:untrack_pfn+0x3af/0x420 arch/x86/mm/pat/memtype.c:1143
Code: ff df 66 42 c7 44 2b 04 f8 f8 45 85 e4 4c 8b 74 24 08 74 63 e8 b2 50 47 00 4d 85 f6 75 a5 e8 a8 50 47 00 eb 10 e8 a1 50 47 00 <0f> 0b 4d 89 e5 42 c6 44 23 08 f8 42 c6 44 2b 0c f8 48 c7 44 24 20
RSP: 0018:ffffc900046174a0 EFLAGS: 00010287
RAX: ffffffff813add7f RBX: 1ffff920008c2e98 RCX: 0000000000080000
RDX: ffffc9000ed19000 RSI: 0000000000015c4a RDI: 0000000000015c4b
RBP: ffffc900046175a0 R08: ffffc90004617520 R09: 1ffffffff1c4215d
R10: dffffc0000000000 R11: fffffbfff1c4215e R12: dffffc0000000000
R13: ffff88807452aaf8 R14: 0000000000000028 R15: 00000000ffffffea
FS:  00007fe7cb4796c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c427f1c CR3: 00000000202d7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unmap_single_vma+0x1b2/0x250 mm/memory.c:1667
 zap_page_range_single+0x3d3/0x4e0 mm/memory.c:1792
 remap_pfn_range_notrack+0x9f4/0xa60 mm/memory.c:2551
 remap_pfn_range+0xed/0x160 mm/memory.c:2576
 usbdev_mmap+0x4a8/0x700 drivers/usb/core/devio.c:276
 call_mmap include/linux/fs.h:2270 [inline]
 mmap_file+0x5d/0xb0 mm/util.c:1109
 __mmap_region mm/mmap.c:2772 [inline]
 mmap_region+0xe79/0x1c50 mm/mmap.c:2916
 do_mmap+0x9ce/0x10d0 mm/mmap.c:1436
 vm_mmap_pgoff+0x1c1/0x2d0 mm/util.c:520
 ksys_mmap_pgoff+0x4bf/0x720 mm/mmap.c:1482
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe7ca59e0d9
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:00007fe7cb479028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe7ca825fa0 RCX: 00007fe7ca59e0d9
RDX: 0000000001000002 RSI: 0000000000400000 RDI: 0000200000000000
RBP: 00007fe7ca635024 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000013 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe7ca826038 R14: 00007fe7ca825fa0 R15: 00007ffcb5ea0538
 </TASK>