[ 207.1522730] panic: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/kern/kern_time.c:853:2, signed integer overflow: 1650892706 + 9223372036854775807 cannot be represented in type 'long int'

[ 207.1522730] cpu0: Begin traceback...
[ 207.1522730] vpanic() at netbsd:vpanic+0x2f2 sys/kern/subr_prf.c:293
[ 207.1522730] Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
[ 207.1522730] HandleOverflow() at netbsd:HandleOverflow+0x1d0 sys/../common/lib/libc/misc/ubsan.c:375
[ 207.1522730] itimer_callout() at netbsd:itimer_callout+0x819 sys/kern/kern_time.c:853
[ 207.1522730] callout_softclock() at netbsd:callout_softclock+0x25b sys/kern/kern_timeout.c:786
[ 207.1522730] softint_dispatch() at netbsd:softint_dispatch+0x3b5 x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:56 [inline]
[ 207.1522730] softint_dispatch() at netbsd:softint_dispatch+0x3b5 softint_execute sys/kern/kern_softint.c:573 [inline]
[ 207.1522730] softint_dispatch() at netbsd:softint_dispatch+0x3b5 sys/kern/kern_softint.c:818
[ 207.1522730] Skipping crash dump on recursive panic
[ 207.1522730] panic: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:123:24, member access within misaligned address 0x1 for type 'struct x86_64_frame' which requires 8 byte alignment

[ 207.1522730] Faulted in mid-traceback; aborting...
[ 207.1522730] fatal breakpoint trap in supervisor mode
[ 207.1522730] trap type 1 code 0 rip 0xffffffff80221a95 cs 0x8 rflags 0x246 cr2 0x63e060 ilevel 0x8 rsp 0xffffb980af690a70
[ 207.1522730] curlwp 0xffff96f81a1c6080 pid 0.5 lowest kstack 0xffffb980af68d2c0
Stopped in pid 0.5 (system) at  netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xec sys/ddb/db_panic.c:69
vpanic() at netbsd:vpanic+0x2f2 sys/kern/subr_prf.c:293
Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0xfc sys/../common/lib/libc/misc/ubsan.c:432
db_nextframe() at netbsd:db_nextframe+0x837 sys/arch/amd64/amd64/db_machdep.c:123
db_stack_trace_print() at netbsd:db_stack_trace_print+0x281 sys/arch/x86/x86/db_trace.c:277
db_panic() at netbsd:db_panic+0x9d x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:56 [inline]
db_panic() at netbsd:db_panic+0x9d sys/ddb/db_panic.c:59
vpanic() at netbsd:vpanic+0x2f2 sys/kern/subr_prf.c:293
Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
HandleOverflow() at netbsd:HandleOverflow+0x1d0 sys/../common/lib/libc/misc/ubsan.c:375
itimer_callout() at netbsd:itimer_callout+0x819 sys/kern/kern_time.c:853
callout_softclock() at netbsd:callout_softclock+0x25b sys/kern/kern_timeout.c:786
softint_dispatch() at netbsd:softint_dispatch+0x3b5 x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:56 [inline]
softint_dispatch() at netbsd:softint_dispatch+0x3b5 softint_execute sys/kern/kern_softint.c:573 [inline]
softint_dispatch() at netbsd:softint_dispatch+0x3b5 sys/kern/kern_softint.c:818
[ 207.1522730] Skipping crash dump on recursive panic
[ 207.1522730] panic: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:124:14, member access within misaligned address 0x1 for type 'struct x86_64_frame' which requires 8 byte alignment

[ 207.1522730] Faulted in mid-traceback; aborting...
[ 207.1522730] fatal breakpoint trap in supervisor mode
[ 207.1522730] trap type 1 code 0 rip 0xffffffff80221a95 cs 0x8 rflags 0x246 cr2 0x63e060 ilevel 0x8 rsp 0xffffb980af68f770
[ 207.1522730] curlwp 0xffff96f81a1c6080 pid 0.5 lowest kstack 0xffffb980af68d2c0
[ 207.1522730] fatal double fault in supervisor mode
[ 207.1522730] trap type 13 code 0 rip 0xffffffff837f4b0f cs 0x8 rflags 0x10286 cr2 0xffffb980af68eff8 ilevel 0x8 rsp 0xffffb980af68f000
[ 207.1522730] curlwp 0xffff96f81a1c6080 pid 0.5 lowest kstack 0xffffb980af68d2c0
kernel: double fault trap, code=0
Faulted in DDB; continuing...