panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff82929e0e) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff828e1086,ffffffff82830869,90,ffffffff828e57eb) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd8006b04780,fffffd8078a552a8,d99b000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8078a552a8,d99b000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd8078a55298,1b33721000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd8078a55298,1b33721000,6ab34000,3,20) at pmap_enter+0x2b0
uvm_fault_lower_lookup(ffff8000377ebad0,ffff8000377ebb08,ffff8000377eba50) at uvm_fault_lower_lookup+0x25a sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff8000377ebad0,ffff8000377ebb08,ffff8000377eba50,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd80074a6c18,1b33720000,0,1) at uvm_fault+0x22a sys/uvm/uvm_fault.c:637
upageflttrap(ffff8000377ebc50,1b33720000) at upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000377ebc50) at usertrap+0x20e sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x776284cfe8d0, count: 245
End of stack trace.