panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 1078
Starting stack trace...
panic(ffffffff830b7685) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff8306a957,ffffffff830174c1,436,ffffffff82fdad29) at __assert+0x29
rtrequest(1,ffff80003766f9e8,38,ffff80003766f960,0) at rtrequest+0xf4d sys/net/route.c:1078
rtm_output(ffff8000013d8300,ffff80003766fa90,ffff8
0003766f9e8,38,0) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd8072b97c00,fffffd8078ac89f0) at route_output+0x9ac sys/net/rtsock.c:878
route_send(fffffd8078ac89f0,fffffd8072b97c00,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(fffffd8078ac89f0,0,ffff80003766fc48,0,0,802) at sosend+0xa40
sendit(ffff800037662538,3,ffff80003766fd40,802,ffff80003766fdf0) at sendit+0x721 sys/kern/uipc_syscalls.c:786
sys_sendto(ffff800037662538,ffff80003766fea0,ffff80003766fdf0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:564
syscall(ffff80003766fea0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa8652ec390, count: 246
End of stack trace.
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