panic: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 993
Starting stack trace...
panic(ffffffff833a4d82) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833e8931,ffffffff8336d725,3e1,ffffffff8331da4f) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(1,ffff80003c419c78,0,ffff80003c419be0,0) at rtrequest+0xe63 sys/net/route.c:1089
rtm_output(ffff800001448400,ffff80003c419d18,ffff80003c419c78,0,0) at rtm_output+0x93d sys/net/rtsock.c:953
route_output(fffffd8063e08300,ffff8000016946c8) at route_output+0x9ef sys/net/rtsock.c:858
route_send(ffff8000016946c8,fffffd8063e08300,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff8000016946c8,0,ffff80003c419ec8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2e6030,7,ffff80003c419fc0,8,ffff80003c41a070) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a2e6030,ffff80003c41a120,ffff80003c41a070) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80003c41a120) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c41a120) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5518dfb44e0, count: 246
End of stack trace.