[   1.0000000] panic: rw_vector_enter,292: uninitialized lock (lock=0xffffffff85ddbc08, from=ffffffff81d1458a)
[   1.0000000] cpu0: Begin traceback...
[   1.0000000] Skipping crash dump on recursive panic
[   1.0000000] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/x86/x86/db_memrw.c:105:20, load of misaligned address 0xffffffff81ed1456 for type 'int' which requires 4 byte alignment

[   1.0000000] Faulted in mid-traceback; aborting...
[   1.0000000] fatal breakpoint trap in supervisor mode
[   1.0000000] trap type 1 code 0 rip 0xffffffff8021dddd cs 0x8 rflags 0x202 cr2 0x8 ilevel 0x8 rsp 0xffffffff86038430
[   1.0000000] curlwp 0xffffffff8508c000 pid 0.1 lowest kstack 0xffffffff860352Skipping crash dump on recursive panic
[   1.0000000] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/uvm/uvm_map.c:1682:20, member access within null pointer of type 'struct vm_map_entry'

[   1.0000000] Faulted in mid-traceback; aborting...
[   1.0000000] fatal breakpoint trap in supervisor mode
[   1.0000000] trap type 1 code 0 rip 0xffffffff8021dddd cs 0x8 rflags 0x202 cr2 0x2c ilevel 0x8 rsp 0xffffffff86037500
[   1.0000000] curlwp 0xffffffff8508c000 pid 0.1 lowest kstack 0xffffffff860352c0
Stopped in pid 0.1 (system) at  ffffffff8021dddd:       leave
db{0}>