panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff82881989) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff82907371,ffffffff828abd13,90,ffffffff82854e11) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd80068ec080,fffffd8065bdfb28,57e973000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline]
uvm_pagealloc_pg(fffffd80068ec080,fffffd8065bdfb28,57e973000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709
uvm_pagealloc(fffffd8065bdfb28,57e973000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd8065bdfb18,afd2e6ba000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd8065bdfb18,afd2e6ba000,5e2ae000,3,22) at pmap_enter+0x29d sys/arch/amd64/amd64/pmap.c:2722
uvm_fault_upper(ffff80002c0f2e60,ffff80002c0f2e98,ffff80002c0f2d60,0) at uvm_fault_upper+0x26c sys/uvm/uvm_fault.c:1056
uvm_fault(fffffd80722899c8,afd2e6ba000,0,2) at uvm_fault+0x134 sys/uvm/uvm_fault.c:608
upageflttrap(ffff80002c0f2fe0,afd2e6ba028) at upageflttrap+0x80 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002c0f2fe0) at usertrap+0x20d sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x78d27d1a1630, count: 246
End of stack trace.