panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff8278602f) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff82800168,ffffffff827aaae2,90,ffffffff82759509) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd8005912d80,fffffd805a206ea0,100000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline]
uvm_pagealloc_pg(fffffd8005912d80,fffffd805a206ea0,100000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709
uvm_pagealloc(fffffd805a206ea0,100000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd805a206e90,20000000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1209
pmap_enter(fffffd805a206e90,20000000,65a01000,3,22) at pmap_enter+0x29d sys/arch/amd64/amd64/pmap.c:2716
uvm_fault_upper(ffff800023140920,ffff800023140958,ffff800023140820,0) at uvm_fault_upper+0x26c sys/uvm/uvm_fault.c:1056
uvm_fault(fffffd8060339a20,20000000,0,2) at uvm_fault+0x134 sys/uvm/uvm_fault.c:608
upageflttrap(ffff800023140aa0,20000080) at upageflttrap+0x80 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff800023140aa0) at usertrap+0x20d sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d5013e6e660, count: 246
End of stack trace.