[  62.2967369] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/kern/vfs_lockf.c:847:10, signed integer overflow: -9079897778161975317 + -7357113568366515666 cannot be represented in type 'long int'

[  62.3167300] cpu1: Begin traceback...
[  62.3367441] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
[  62.4067734] isAlreadyReported() at netbsd:isAlreadyReported
[  62.4567961] HandleOverflow() at netbsd:HandleOverflow+0x1fb sys/../common/lib/libc/misc/ubsan.c:360
[  62.5168219] lf_advlock() at netbsd:lf_advlock+0x2326 sys/kern/vfs_lockf.c:847
[  62.5668449] VOP_ADVLOCK() at netbsd:VOP_ADVLOCK+0x12c sys/kern/vnode_if.c:1518
[  62.6168687] do_fcntl_lock() at netbsd:do_fcntl_lock+0x318 sys/kern/sys_descrip.c:303
[  62.6668898] sys_fcntl() at netbsd:sys_fcntl+0x115 sys/kern/sys_descrip.c:380
[  62.7169122] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
[  62.7169122] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
[  62.7769407] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
[  62.7769407] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
[  62.7769407] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
[  62.7869440] --- syscall (number 198) ---
[  62.7869440] Skipping crash dump on recursive panic
[  62.7969504] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x3 for type 'struct x86_64_frame' which requires 8 byte alignment

[  62.8169543] Faulted in mid-traceback; aborting...
[  62.8269579] fatal breakpoint trap in supervisor mode
[  62.8269579] trap type 1 code 0 rip 0xffffffff8021ddfd cs 0x8 rflags 0x286 cr2 0x20000018 ilevel 0 rsp 0xffffb680a69c2840
[  62.8369630] curlwp 0xffff88e48b02f280 pid 799.3 lowest kstack 0xffffb680a69c02c0
Stopped in pid 799.3 (syz-executor.0) 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
HandleOverflow() at netbsd:HandleOverflow+0x1fb sys/../common/lib/libc/misc/ubsan.c:360
lf_advlock() at netbsd:lf_advlock+0x2326 sys/kern/vfs_lockf.c:847
VOP_ADVLOCK() at netbsd:VOP_ADVLOCK+0x12c sys/kern/vnode_if.c:1518
do_fcntl_lock() at netbsd:do_fcntl_lock+0x318 sys/kern/sys_descrip.c:303
sys_fcntl() at netbsd:sys_fcntl+0x115 sys/kern/sys_descrip.c:380
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) ---
[  62.8469673] Skipping crash dump on recursive panic
[  62.8469673] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x3 for type 'struct x86_64_frame' which requires 8 byte alignment

[  62.8469673] Faulted in mid-traceback; aborting...
[  62.8469673] fatal breakpoint trap in supervisor mode
[  62.8469673] trap type 1 code 0 rip 0xffffffff8021ddfd cs 0x8 rflags 0x286 cr2 0x20000018 ilevel 0x8 rsp 0xffffb680a69c1540
[  62.8469673] curlwp 0xffff88e48b02f280 pid 799.3 lowest kstack 0xffffb680a69c02c0
Stopped in pid 799.3 (syz-executor.0) at        netbsd:breakpoint+0x5:  leave