Re: [PATCH] psp: reject packets carrying unsupported PSP optional fields

David CARLIER
2026-04-30T10:59:54Z

Hi

> [...] we should fix it by validating that it is less than the
> remaining bytes after the psp-udp header, and then stripping the
> correct header length accordingly.

Makes sense, I'll respin to compute the strip length from
psph->hdrlen (after a second pskb_may_pull to bring the option
bytes in) and drop the rejection -- easier to ignore VC/options
than to refuse them.

> For the other two, I'm not sure they are really necessary.

Will drop both, agreed.

> [...] this function will also need a comment update [...]

Will refresh the kerneldoc.

> For a fix, you'll need to target the net tree with this patch

Ack, will rebase on net for v2.

Thanks,