panic: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 994
Starting stack trace...
panic(ffffffff8340cc5c) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff833b7ae1,ffffffff83358a55,3e2,ffffffff83332ecb) at 
__assert+0x29
rtrequest(1,ffff80002a88f818,38,ffff80002a88f790,0) at rtrequest+0xf00 rtlabel_id2sa sys/net/route.c:1808 [inline]
rtrequest(1,ffff80002a88f818,38,ffff80002a88f790,0) at rtrequest+0xf00 sys/net/route.c:988
rtm_output(ffff80000141fd00,ffff80002a88f8c0,ffff80002a88f818,38,0) at rtm_output+0x856 sys/net/rtsock.c:973
route_output(fffffd8065f26800,ffff8000014d7298) at route_output+0x9ac sys/net/rtsock.c:878
route_send(ffff8000014d7298,fffffd8065f26800,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(ffff8000014d7298,0,ffff80002a88fa68,0,0,0) at sosend+0x824
sendit(ffff80002a7bdc48,6,ffff80002a88fb60,0,ffff80002a88fc10) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendto(ffff80002a7bdc48,ffff80002a88fcc0,ffff80002a88fc10) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557
syscall(ffff80002a88fcc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x39559734740, count: 246
End of stack trace.
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