[ 306.0747077] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/process_machdep.c:159:2, member access within misaligned address 0xffffb180b44528c8 for type 'struct fpreg' which requires 16 byte alignment

[ 306.1039980] cpu0: Begin traceback...
[ 306.1303461] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
[ 306.1971297] isAlreadyReported() at netbsd:isAlreadyReported
[ 306.2750479] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
[ 306.3418299] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408
[ 306.3974815] process_read_fpregs() at netbsd:process_read_fpregs+0x3d sys/arch/amd64/amd64/process_machdep.c:159
[ 306.4753995] proc_regio() at netbsd:proc_regio+0x164 sys/kern/sys_ptrace_common.c:1478
[ 306.5421837] process_dofpregs() at netbsd:process_dofpregs+0xa7 sys/kern/sys_ptrace_common.c:1566
[ 306.6089677] do_ptrace() at netbsd:do_ptrace+0x12d6 ptrace_regs sys/kern/sys_ptrace_common.c:897 [inline]
[ 306.6089677] do_ptrace() at netbsd:do_ptrace+0x12d6 sys/kern/sys_ptrace_common.c:1429
[ 306.6757524] sys_ptrace() at netbsd:sys_ptrace+0x4f sys/kern/sys_ptrace.c:218
[ 306.7425433] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
[ 306.7425433] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
[ 306.8093220] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
[ 306.8093220] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 306.8093220] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
[ 306.8316248] --- syscall (number 198) ---
[ 306.8316248] Skipping crash dump on recursive panic
[ 306.8316248] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x4 for type 'struct x86_64_frame' which requires 8 byte alignment

[ 306.8657117] Faulted in mid-traceback; aborting...
[ 306.8657117] fatal breakpoint trap in supervisor mode
[ 306.8766034] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x9 ilevel 0 rsp 0xffffb180b44514b0
[ 306.8880043] curlwp 0xffffd375be0b2740 pid 9520.4 lowest kstack 0xffffb180b444f2c0
Stopped in pid 9520.4 (syz-executor.4) at       netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0x109 sys/ddb/db_panic.c:67
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408
db_nextframe() at netbsd:db_nextframe+0x6f6 sys/arch/amd64/amd64/db_machdep.c:153
db_stack_trace_print() at netbsd:db_stack_trace_print+0x2c4 sys/arch/x86/x86/db_trace.c:277
db_panic() at netbsd:db_panic+0xa3 x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:67 [inline]
db_panic() at netbsd:db_panic+0xa3 sys/ddb/db_panic.c:57
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408
process_read_fpregs() at netbsd:process_read_fpregs+0x3d sys/arch/amd64/amd64/process_machdep.c:159
proc_regio() at netbsd:proc_regio+0x164 sys/kern/sys_ptrace_common.c:1478
process_dofpregs() at netbsd:process_dofpregs+0xa7 sys/kern/sys_ptrace_common.c:1566
do_ptrace() at netbsd:do_ptrace+0x12d6 ptrace_regs sys/kern/sys_ptrace_common.c:897 [inline]
do_ptrace() at netbsd:do_ptrace+0x12d6 sys/kern/sys_ptrace_common.c:1429
sys_ptrace() at netbsd:sys_ptrace+0x4f sys/kern/sys_ptrace.c:218
sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
--- syscall (number 198) ---
[ 306.8880043] Skipping crash dump on recursive panic
[ 306.8880043] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x4 for type 'struct x86_64_frame' which requires 8 byte alignment

[ 306.8880043] Faulted in mid-traceback; aborting...
[ 306.8880043] fatal breakpoint trap in supervisor mode
[ 306.8880043] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x9 ilevel 0x8 rsp 0xffffb180b44501b0
[ 306.8880043] curlwp 0xffffd375be0b2740 pid 9520.4 lowest kstack 0xffffb180b444f2c0
Stopped in pid 9520.4 (syz-executor.4) at       netbsd:breakpoint+0x5:  leave