panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 1089
Starting stack trace...
panic(ffffffff83353058) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff83390f0e,ffffffff833d2cff,441,ffffffff833bef52) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(1,ffff80002a7eb338,8,ffff80002a7eb400,0) at rtrequest+0x115a
rt_ifa_add(ffff8000014fd500,40004,ffff8000014fd568,0) at rt_ifa_add+0x38f sys/net/route.c:1284
in_ifinit(ffff80002a8760c0,ffff8000014fd500,ffff80002a7eb530,1) at in_ifinit+0x53d sys/netinet/in.c:-1
pppx_add_session(ffff8000014fdc00,ffff8000014fc000) at pppx_add_session+0x472 sys/net/if_pppx.c:717
VOP_IOCTL(fffffd806c692620,82907003,ffff8000014fc000,41,fffffd8007bfb7b8,ffff80002a823cb8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806c203620,82907003,ffff8000014fc000,ffff80002a823cb8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80002a823cb8,ffff80002a7eb930,ffff80002a7eb880) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff80002a7eb930) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7eb930) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x25a13f20c20, count: 246
End of stack trace.
syncing disks...