panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff829296df) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff828e296e,ffffffff8282e4df,90,ffffffff828e3292) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd80060da500,fffffd806af981e8,bca000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806af981e8,bca000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd806af981b8,2f285061000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd806af981b8,2f285061000,6a613000,4,20) at pmap_enter+0x2b0
uvm_fault_lower_lookup(ffff80002fb3b110,ffff80002fb3b148,ffff80002fb3b090) at uvm_fault_lower_lookup+0x25a sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002fb3b110,ffff80002fb3b148,ffff80002fb3b090,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd805cc492f0,2f285064000,0,4) at uvm_fault+0x22a sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002fb3b290,2f285064cbb) at upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002fb3b290) at usertrap+0x20e sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x799dbe3036d0, count: 245
End of stack trace.