[ 54.5622247] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/net/rtsock_shared.c:631:41, member access within misaligned address 0xffffb95046b240cc for type 'struct rt_msghdr50' which requires 8 byte alignment [ 54.5892142] cpu0: Begin traceback... [ 54.6178064] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 54.6845292] isAlreadyReported() at netbsd:isAlreadyReported [ 54.7512503] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc [ 54.8290928] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408 [ 54.8958162] compat_50_route_output() at netbsd:compat_50_route_output+0x1a4a sys/net/rtsock_shared.c:631 [ 54.9625377] raw_send() at netbsd:raw_send+0x20b sys/net/raw_usrreq.c:182 [ 55.0181336] compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f compat_50_route_send sys/net/rtsock_shared.c:464 [inline] [ 55.0181336] compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f sys/net/rtsock_shared.c:1663 [ 55.0848564] sosend() at netbsd:sosend+0x15ac sys/kern/uipc_socket.c:1059 [ 55.1405618] soo_write() at netbsd:soo_write+0x88 sys/kern/sys_socket.c:122 [ 55.1960589] dofilewrite() at netbsd:dofilewrite+0x13f sys/kern/sys_generic.c:350 [ 55.2516605] sys_write() at netbsd:sys_write+0xc2 sys/kern/sys_generic.c:318 [ 55.3072582] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline] [ 55.3072582] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77 [ 55.3739830] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline] [ 55.3739830] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline] [ 55.3739830] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138 [ 55.3851024] --- syscall (number 198) --- [ 55.3963724] Skipping crash dump on recursive panic [ 55.3963724] 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 [ 55.4250105] Faulted in mid-traceback; aborting... [ 55.4303960] fatal breakpoint trap in supervisor mode [ 55.4303960] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x20001000 ilevel 0x4 rsp 0xffffd080b2c1f720 [ 55.4481893] curlwp 0xffffb95054d6b5a0 pid 617.3 lowest kstack 0xffffd080b2c1d2c0 Stopped in pid 617.3 (syz-executor.4) 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 HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408 compat_50_route_output() at netbsd:compat_50_route_output+0x1a4a sys/net/rtsock_shared.c:631 raw_send() at netbsd:raw_send+0x20b sys/net/raw_usrreq.c:182 compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f compat_50_route_send sys/net/rtsock_shared.c:464 [inline] compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f sys/net/rtsock_shared.c:1663 sosend() at netbsd:sosend+0x15ac sys/kern/uipc_socket.c:1059 soo_write() at netbsd:soo_write+0x88 sys/kern/sys_socket.c:122 dofilewrite() at netbsd:dofilewrite+0x13f sys/kern/sys_generic.c:350 sys_write() at netbsd:sys_write+0xc2 sys/kern/sys_generic.c:318 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) --- [ 55.4564324] Skipping crash dump on recursive panic [ 55.4564324] 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 [ 55.4564324] Faulted in mid-traceback; aborting... [ 55.4564324] fatal breakpoint trap in supervisor mode [ 55.4564324] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x20001000 ilevel 0x8 rsp 0xffffd080b2c1e420 [ 55.4564324] curlwp 0xffffb95054d6b5a0 pid 617.3 lowest kstack 0xffffd080b2c1d2c0 Stopped in pid 617.3 (syz-executor.4) at netbsd:breakpoint+0x5: leave