[ 1.5766638] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/kern/vfs_subr.c:793:14, member access within null pointer of type 'struct vnode_impl' [ 1.5892304] cpu0: Begin traceback... [ 1.5960665] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 1.6060785] isAlreadyReported() at netbsd:isAlreadyReported [ 1.6171298] init: copying out path `/sbin/init' 11 [ 1.6261075] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0x15b [ 1.6461359] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408 [ 1.6661659] sched_sync() at netbsd:sched_sync+0x50a sys/kern/vfs_subr.c:793 [ 1.6661659] cpu0: End traceback... [ 1.6783357] fatal breakpoint trap in supervisor mode [ 1.6783357] trap type 1 code 0 rip 0xffffffff8021dddd cs 0x8 rflags 0x286 cr2 0 ilevel 0 rsp 0xffff8a80a69169e0 [ 1.6888398] curlwp 0xffff8294daa23660 pid 0.55 lowest kstack 0xffff8a80a69132c0 Stopped in pid 0.55 (system) at netbsd:breakpoint+0x5: leave db{0}>