On Tue, Oct 12, 2021 at 12:02:04PM +0200, Florian Westphal wrote: > Xin Long <lucien.xin@xxxxxxxxx> wrote: > > In rt_mt6(), when it's a nonlinear skb, the 1st skb_header_pointer() > > only copies sizeof(struct ipv6_rt_hdr) to _route that rh points to. > > The access by ((const struct rt0_hdr *)rh)->reserved will overflow > > the buffer. So this access should be moved below the 2nd call to > > skb_header_pointer(). > > > > Besides, after the 2nd skb_header_pointer(), its return value should > > also be checked, othersize, *rp may cause null-pointer-ref. > > Patch looks good but I think you can just axe these pr_debug statements > instead of moving them. > > Before pr_debug conversion these statments were #if-0 out, I don't think > they'll be missed if they are removed. Agreed.
