Re: [tipc-discussion] [PATCHv2 net 0/3] tipc: fix the mtu update in link mtu negotiation

[Jon M. <jm...@re...>]

On 2023-05-02 18:13, Xin Long wrote:
> 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(-)
>
Series
Acked-by: Jon Maloy <jm...@re...>