netdev - Re: [PATCH] net/ipv4/ip_fragment:fix missing Flags reserved bit set in iphdr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 7 May 2021 15:59:00 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     meijusan <meijusan@....com>
Cc:     davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/ipv4/ip_fragment:fix missing Flags reserved bit set
 in iphdr

On Thu,  6 May 2021 22:59:05 +0800 meijusan wrote:
> ip frag with the iphdr flags reserved bit set,via router,ip frag reasm or
> fragment,causing the reserved bit is reset to zero.
> 
> Keep reserved bit set is not modified in ip frag  defrag or fragment.
> 
> Signed-off-by: meijusan <meijusan@....com>

Could you please provide more background on why we'd want to do this?
Preferably with references to relevant (non-April Fools' Day) RFCs.