On 2021-07-02 at 09:54 Johannes Berg (<johannes@xxxxxxxxxxxxxxxx>) wrote: > > > If testing procedure mentioned in my first email is sufficient (and > > using skb->data is the correct solution in kernel trees where current > > code doesn't work properly), I can make and test the patches. > > Should I do that? > > Yes, please do. > > Thanks, > johannes > I have done the testing on kernel versions 4.4.274, 4.9.274, 4.14.238, 4.19.196, 5.4.130, 5.10.48, 5.12.15 and 5.13.1. Only kernels 4.4.274, 4.9.274 and 4.14.238 are affected. On kernels 4.19.196, 5.4.130, 5.10.48, 5.12.15 and 5.13.1 current code works properly (and skb->data produces incorrect pointer when used instead of skb_mac_header()). I have submitted patches for the affected kernel versions: https://lore.kernel.org/r/20210707213800.1087974-1-davis@xxxxxxxxxxxx https://lore.kernel.org/r/20210707213820.1088026-1-davis@xxxxxxxxxxxx https://lore.kernel.org/r/20210707213834.1088078-1-davis@xxxxxxxxxxxx Best regards, Davis
