xxxyyy

Results 2 issues of xxxyyy

Here is the function I want to slice. And the slicing cmd is `llvm-slicer -sc '68#src_channels' -cutoff-diverging=false -entry convert linear.bc `![Screenshot from 2022-04-11 21-38-23](https://user-images.githubusercontent.com/10864295/162881915-d50baa7d-d421-4084-bf6c-62fbdd3db827.png) the slicing result by line number...

question

map_free 在虚函数表bpf_map_ops里的偏移是24.struct bpf_queue_stack 结构体里elements的偏移是208,struct bpf_queue_stack的size是256,为了能重写map_free至少应该copy72个byte啊,为什么代码里面是64?还有exp并没有对slub进行defragment,堆喷时,喷射的14个struct bpf_queue_stack和有漏洞的struct bpf_queue_stack结构体根本不相邻。