[ 1.0000000] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/kern/vfs_mount.c:153:13, member access within misaligned address 0xfffff4d6010cb008 for type 'struct mount' which requires 64 byte alignment [ 1.0000000] cpu0: Begin traceback... [ 1.0000000] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 1.0000000] isAlreadyReported() at netbsd:isAlreadyReported [ 1.0000000] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc [ 1.0000000] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408 [ 1.0000000] vfs_mountalloc() at netbsd:vfs_mountalloc+0x320 sys/kern/vfs_mount.c:153 [ 1.0000000] vfs_vnode_sysinit() at netbsd:vfs_vnode_sysinit+0x1e sys/kern/vfs_vnode.c:391 [ 1.0000000] vntblinit() at netbsd:vntblinit+0x345 sys/kern/vfs_subr.c:141 [ 1.0000000] vfsinit() at netbsd:vfsinit+0x1c3 sys/kern/vfs_init.c:418 [ 1.0000000] main() at netbsd:main+0x2f9 sys/kern/init_main.c:490 [ 1.0000000] cpu0: End traceback... [ 1.0000000] fatal breakpoint trap in supervisor mode [ 1.0000000] trap type 1 code 0 rip 0xffffffff8021f59d cs 0x8 rflags 0x202 cr2 0 ilevel 0x8 rsp 0xffffffff86467700 [ 1.0000000] curlwp 0xffffffff85569b80 pid 0.1 lowest kstack 0xffffffff864632c0 Stopped in pid 0.1 (system) at netbsd:breakpoint+0x5: leave db{0}>