panic: kernel diagnostic assertion "(rt->rt_flags & RTF_MPATH) || mrt->rt_priority != prio" failed: file "/syzkaller/managers/main/kernel/sys/net/rtable.c", line 569 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *400998 67426 0 0 0x4000000 0 syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:212 __assert(ffffffff81f7aa47,ffffffff81f39f83,239,ffffffff81f1656f) at __assert+0x2e sys/kern/subr_prf.c:159 rtable_insert(0,ffff800000994900,0,ffff8000009eb890,38,fffffd802fea2008) at rtable_insert+0x66b sys/net/rtable.c:569 rtrequest(1,ffff800015a10320,38,ffff800015a10298,0) at rtrequest+0x875 sys/net/route.c:928 rtm_output(ffff8000009eb800,ffff800015a103c8,ffff800015a10320,38,0) at rtm_output+0x6e5 sys/net/rtsock.c:896 route_output(fffffd80302c3b00,fffffd8037058c00,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8037058c00,9,fffffd80302c3b00,0,0,ffff800014950988) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8037058c00,0,ffff800015a105c0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800014950988,3,ffff800015a106a0,0,ffff800015a107b0) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800014950988,ffff800015a10748,ffff800015a107b0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800015a10820) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,6b116bf010) at Xsyscall+0x128 end of kernel end trace frame: 0x6d14fcaee0, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.