On 09/07/2017 04:13 PM, Daniel Borkmann wrote:
[...]
+uint64_t addr = (unsigned long)prog;
And of course: s/uint64_t/u64/. Lack of context switch. ;-)
Hey Jesper,
On 09/07/2017 02:33 PM, Jesper Dangaard Brouer wrote:
Catch different invalid XDP_REDIRECT and bpf_redirect_map API usage.
It is fairly easy to create a dangling redirect_info->map pointer,
which (until John or Daniel fix this) can crash the kernel.
[...]
Here's what I wrote up ye
Catch different invalid XDP_REDIRECT and bpf_redirect_map API usage.
It is fairly easy to create a dangling redirect_info->map pointer,
which (until John or Daniel fix this) can crash the kernel.
The intended usage of the BPF helper bpf_redirect_map(), is to return
XDP_REDIRECT action after invok
