panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 1085
Starting stack trace...
panic(ffffffff83407b62) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff833b441d,ffffffff83358088,43d,ffffffff8331522e) at __assert+0x29
rtrequest(1,ffff80003c95d048,8,ffff80003c95d118,0) at rtrequest+0xf4d sys/net/route.c:1085
rt_ifa_add(ffff800001591700,40004,ffff800001591768,0) at rt_ifa_add+0x38d sys/net/route.c:1280
in_ifinit(ff
ff80002a8465f8,ffff800001591700,ffff80003c95d238,1) at in_ifinit+0x542
pppx_add_session(ffff8000015a4a00,ffff800000b51c00) at pppx_add_session+0x474 sys/net/if_pppx.c:729
VOP_IOCTL(fffffd80730b12a8,82907003,ffff800000b51c00,1,fffffd807f7d7820,ffff80003c9839c8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806c0922d8,82907003,ffff800000b51c00,ffff80003c9839c8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80003c9839c8,ffff80003c95d650,ffff80003c95d5a0) at sys_ioctl+0x5bf
syscall(ffff80003c95d650) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5ecc8225710, count: 246
End of stack trace.
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