netdev - RE: [PATCHv3 net 0/3] tipc: fix the mtu update in link mtu negotiation

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Date: Mon, 15 May 2023 02:41:13 +0000
From: Tung Quang Nguyen <tung.q.nguyen@...tech.com.au>
To: Xin Long <lucien.xin@...il.com>, network dev <netdev@...r.kernel.org>,
	"tipc-discussion@...ts.sourceforge.net"
	<tipc-discussion@...ts.sourceforge.net>
CC: "davem@...emloft.net" <davem@...emloft.net>, "kuba@...nel.org"
	<kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
	<pabeni@...hat.com>, Jon Maloy <jmaloy@...hat.com>
Subject: RE: [PATCHv3 net 0/3] tipc: fix the mtu update in link mtu
 negotiation

>Subject: [PATCHv3 net 0/3] tipc: fix the mtu update in link mtu negotiation
>
>This patchset fixes a crash caused by a too small MTU carried in the
>activate msg. Note that as such malicious packet does not exist in
>the normal env, the fix won't break any application
>
>The 1st patch introduces a function to calculate the minimum MTU for
>the bearer, and the 2nd patch fixes the crash with this helper. While
>at it, the 3rd patch fixes the udp bearer mtu update by netlink with
>this helper.
>
>Xin Long (3):
>  tipc: add tipc_bearer_min_mtu to calculate min mtu
>  tipc: do not update mtu if msg_max is too small in mtu negotiation
>  tipc: check the bearer min mtu properly when setting it by netlink
>
> net/tipc/bearer.c    | 17 +++++++++++++++--
> net/tipc/bearer.h    |  3 +++
> net/tipc/link.c      |  9 ++++++---
> net/tipc/udp_media.c |  5 +++--
> 4 files changed, 27 insertions(+), 7 deletions(-)
>
>--
>2.39.1
For the whole series:
Reviewed-by: Tung Nguyen <tung.q.nguyen@...tech.com.au>