panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830df104) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83095b63,ffffffff8303c515,90,ffffffff8309c8ec) at __assert+0x29
uvm_pagealloc_pg(fffffd8007e2ce60,fffffd8061261138,d998000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8061261138,d998000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd8061261108,1b33021000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd8061261108,1b33021000,7c7b5000,3,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff80002e005850,ffff80002e005888,ffff80002e0057d0) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002e005850,ffff80002e005888,ffff80002e0057d0,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806b948370,1b33020000,0,1) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002e0059d0,1b33020008) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002e0059d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x70e263b3fdc0, count: 245
End of stack trace.