[  72.9635093] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/kern/subr_time.c:223:2, signed integer overflow: 9223372036854775805 + 72 cannot be represented in type 'long int'

[  72.9836302] cpu0: Begin traceback...
[  73.0035191] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
[  73.0736360] isAlreadyReported() at netbsd:isAlreadyReported
[  73.1337380] HandleOverflow() at netbsd:HandleOverflow+0x1fb sys/../common/lib/libc/misc/ubsan.c:360
[  73.1938417] gettimeleft() at netbsd:gettimeleft+0x3ef sys/kern/subr_time.c:223
[  73.2639531] sel_do_scan() at netbsd:sel_do_scan+0x510 sys/kern/sys_select.c:288
[  73.3240571] selcommon() at netbsd:selcommon+0x28e sys/kern/sys_select.c:380
[  73.3841580] sys___select50() at netbsd:sys___select50+0xdb sys/kern/sys_select.c:217
[  73.4442589] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
[  73.4442589] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
[  73.5143818] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
[  73.5143818] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
[  73.5143818] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
[  73.5344095] --- syscall (number 198) ---
[  73.5344095] Skipping crash dump on recursive panic
[  73.5469791] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x5 for type 'struct x86_64_frame' which requires 8 byte alignment

[  73.5702938] Faulted in mid-traceback; aborting...
[  73.5751413] fatal breakpoint trap in supervisor mode
[  73.5751413] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x20002640 ilevel 0 rsp 0xffff8480b3000790
[  73.5913270] curlwp 0xffff816811361bc0 pid 784.3 lowest kstack 0xffff8480b2ffe2c0
Stopped in pid 784.3 (syz-executor.2) at        netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xd1 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+0x8b x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:56 [inline]
db_panic() at netbsd:db_panic+0x8b sys/ddb/db_panic.c:57
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
isAlreadyReported() at netbsd:isAlreadyReported
HandleOverflow() at netbsd:HandleOverflow+0x1fb sys/../common/lib/libc/misc/ubsan.c:360
gettimeleft() at netbsd:gettimeleft+0x3ef sys/kern/subr_time.c:223
sel_do_scan() at netbsd:sel_do_scan+0x510 sys/kern/sys_select.c:288
selcommon() at netbsd:selcommon+0x28e sys/kern/sys_select.c:380
sys___select50() at netbsd:sys___select50+0xdb sys/kern/sys_select.c:217
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) ---
[  73.5989305] Skipping crash dump on recursive panic
[  73.5989305] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x5 for type 'struct x86_64_frame' which requires 8 byte alignment

[  73.5989305] Faulted in mid-traceback; aborting...
[  73.5989305] fatal breakpoint trap in supervisor mode
[  73.5989305] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x20002640 ilevel 0x8 rsp 0xffff8480b2fff490
[  73.5989305] curlwp 0xffff816811361bc0 pid 784.3 lowest kstack 0xffff8480b2ffe2c0
Stopped in pid 784.3 (syz-executor.2) at        netbsd:breakpoint+0x5:  leave