[ 45.6086661] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/net/rtsock_shared.c:631:41, member access within misaligned address 0xffff8dfb2058824c for type 'struct rt_msghdr50' which requires 8 byte alignment [ 45.6198708] cpu0: Begin traceback... [ 45.6387155] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 45.6988558] isAlreadyReported() at netbsd:isAlreadyReported [ 45.7589973] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc [ 45.8191333] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408 [ 45.8892947] compat_50_route_output() at netbsd:compat_50_route_output+0x1a4a sys/net/rtsock_shared.c:631 [ 45.9494337] raw_send() at netbsd:raw_send+0x20b sys/net/raw_usrreq.c:182 [ 45.9995474] compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f compat_50_route_send sys/net/rtsock_shared.c:464 [inline] [ 45.9995474] compat_50_route_send_wrapper() at netbsd:compat_50_route_send_wrapper+0x9f sys/net/rtsock_shared.c:1663 [ 46.0697113] sosend() at netbsd:sosend+0x15ac sys/kern/uipc_socket.c:1059 [ 46.1198265] do_sys_sendmsg_so() at netbsd:do_sys_sendmsg_so+0x53d sys/kern/uipc_syscalls.c:629 [ 46.1800177] do_sys_sendmsg() at netbsd:do_sys_sendmsg+0xcd sys/kern/uipc_syscalls.c:679 [ 46.2401025] sys_sendto() at netbsd:sys_sendto+0xc9 sys/kern/uipc_syscalls.c:514 [ 46.3002432] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline] [ 46.3002432] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77 [ 46.3603857] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline] [ 46.3603857] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline] [ 46.3603857] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138 [ 46.3804304] --- syscall (number 198) --- [ 46.3804304] Skipping crash dump on recursive panic [ 46.3927189] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x6 for type 'struct x86_64_frame' which requires 8 byte alignment [ 46.4139406] Faulted in mid-traceback; aborting... [ 46.4139406] fatal breakpoint trap in supervisor mode [ 46.4220348] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x720c991faf10 ilevel 0x4 rsp 0xffffd080a5c655f0 [ 46.4352283] curlwp 0xffff8dfb20a46740 pid 634.3 lowest kstack 0xffffd080a5c632c0 Stopped in pid 634.3 (syz-executor.3) 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 do_sys_sendmsg_so() at netbsd:do_sys_sendmsg_so+0x53d sys/kern/uipc_syscalls.c:629 do_sys_sendmsg() at netbsd:do_sys_sendmsg+0xcd sys/kern/uipc_syscalls.c:679 sys_sendto() at netbsd:sys_sendto+0xc9 sys/kern/uipc_syscalls.c:514 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) --- [ 46.4427517] Skipping crash dump on recursive panic [ 46.4427517] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x6 for type 'struct x86_64_frame' which requires 8 byte alignment [ 46.4427517] Faulted in mid-traceback; aborting... [ 46.4427517] fatal breakpoint trap in supervisor mode [ 46.4427517] trap type 1 code 0 rip 0xffffffff8021e7cd cs 0x8 rflags 0x282 cr2 0x720c991faf10 ilevel 0x8 rsp 0xffffd080a5c642f0 [ 46.4427517] curlwp 0xffff8dfb20a46740 pid 634.3 lowest kstack 0xffffd080a5c632c0 Stopped in pid 634.3 (syz-executor.3) at netbsd:breakpoint+0x5: leave