syzbot

panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)
" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_pag
e.c", line 1248
Starting stack trace...
panic(ffffffff830b234c) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff830679a2,ffffffff82fb92ad,4e0,ffffffff830bcc88) at __assert+0x29
uvm_pageunwire(fffffd800697d580) at uvm_pageunwire+0x1dd sys/uvm/uvm_page.c:1248
uvm_fault_unwire_locked(fffffd8077391970,1cb6f95a000,1cb6f95b000) at uvm_fault_unwire_locked+0x33e sys/uvm/uvm_fault.c:1695
uvm_unmap_kill_entry_withlock(fffffd8077391970,fffffd8063b058a0,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1861
uvm_map_teardown(fffffd8077391970) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498
uvmspace_free(fffffd8077391970) at uvmspace_free+0xbd sys/uvm/uvm_map.c:3422
reaper(ffff80002a457958) at reaper+0x225 sys/kern/kern_exit.c:478
end trace frame: 0x0, count: 249
End of stack trace.