panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830a735b) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff8305fe9b,ffffffff82fafb29,90,ffffffff830650fa) at __assert+0x29
uvm_pagealloc_pg(fffffd8007219300,fffffd806c4c7cc0,2fc9db000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806c4c7cc0,2fc9db000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806c4c7cb0,5f93b6e9000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806c4c7cb0,5f93b6e9000,748fe000,3,20) at pmap_enter+0x395
uvm_fault_upper_lookup(ffff80002a50f130,ffff80002a50f168,ffff80002a50f030,ffff80002a50f0b0) at uvm_fault_upper_lookup+0x368
uvm_fault(fffffd807994d020,5f93b6ea000,0,1) at uvm_fault+0x149 sys/uvm/uvm_fault.c:605
upageflttrap(ffff80002a50f2b0,5f93b6eaac0) at upageflttrap+0xa0 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002a50f2b0) at usertrap+0x2bc sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x77aae0e136e0, count: 246
End of stack trace.