syzbot

panic: trap type 6, code=10, pc=0
Starting stack trace...
panic(ffffffff833db43f) at panic+464
kerntrap(ffff80003c49a520) at kerntrap+779
alltraps_kern_meltdown() at alltraps_kern_meltdown+123
0(b,ffff80003c49a6e8,3,ffff80003c49a788,0,b) at 0

rt_clone(ffff80003c49a7f8,ffff80003c49aa80,0) at rt_clone+155
route_mpath(ffff80003c49aa68,fffffd800b9b3060,fffffd800b9b305c,0) at route_mpath+367
in_ouraddr(fffffd806d30e300,ffff800001600000,ffff80003c49aa68,0) at in_ouraddr+290
ip_input_if(ffff80003c49a9d0,ffff80003c49a9dc,ffff800031be1000,0,ffff800001600000,ffff80003c49aa38) at ip_input_if+1011
ipv4_input(ffff800001600000,fffffd806d30e300,ffff80003c49aa38) at ipv4_input+90
tun_input_process(ffff800001600000,fffffd806d30e300) at tun_input_process+762
tun_dev_write(5d06,ffff80003c49ae18,ffff800031be1000,2) at tun_dev_write+1881
spec_write(ffff80003c49ac60) at spec_write+287
VOP_WRITE(fffffd806daf7468,ffff80003c49ae18,11,fffffd80097fd3a8) at VOP_WRITE+257
vn_write(fffffd806a6014a0,ffff80003c49ae18,0) at vn_write+467
dofilewritev(ffff800030fde7e8,c8,ffff80003c49ae18,0,ffff80003c49aed0) at dofilewritev+578
sys_write(ffff800030fde7e8,ffff80003c49af80,ffff80003c49aed0) at sys_write+162
syscall(ffff80003c49af80) at syscall+3028
Xsyscall() at Xsyscall+296
end of kernel
end trace frame: 0xe8e614d74c0, count: 239
End of stack trace.