Re: [PATCH net 0/2] ipv4: harden against ihl < 5 IP_HDRINCL packets
From: Jakub Kicinski
Date: Fri May 15 2026 - 19:02:10 EST
On Tue, 12 May 2026 16:51:13 -0400 Michael Bommarito wrote:
> 1/2 ipv4: raw: reject IP_HDRINCL packets with ihl < 5
>
> Upstream-of-AH fix. An IPv4 header with ihl < 5 is malformed
> by definition (RFC 791) and must not be allowed to continue
> along the in-stack output path. This is the primary fix.
I believe this part is uncontroversial and doesn't have to wait
for the rest of the discussion to shake out. So applying it now.
Please shout if i shouldn't have