ACK: [SRU][J][PATCH 0/1] CVE-2024-36945

[Ian Whitfield]

On Tue, Apr 29, 2025 at 03:11:44PM +0200, Massimiliano Pellizzer wrote:
> BugLink: https://bugs.launchpad.net/bugs/2109601
> https://ubuntu.com/security/CVE-2024-36945
> 
> [Impact]
> 
> net/smc: fix neighbour and rtable leak in smc_ib_find_route()
> 
> In smc_ib_find_route(), the neighbour found by neigh_lookup() and rtable
> resolved by ip_route_output_flow() are not released or put before return.
> It may cause the refcount leak, so fix it.
> 
> 
> [Fix]
> 
> Cherry pick the fix commit in Jammy:
> - 2ddc0dd7fec8 net/smc: fix neighbour and rtable leak in smc_ib_find_route()
> 
> [Test Plan]
> 
> Compile tested only.
> 
> 
> [Where Problems Could Occur]
> 
> The fix affects the SMC-R RDMA route resolution subsystem.
> An issue with this fix may lead to incorrect handling of
> reference counting neighbor and routing table objects
> during RDMA path establishment.
> A user might experience problems such asfailed RDMA connection setups
> resulting in fallback to TCP even on capable hardware.
> 
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Acked-by: Ian Whitfield <ian.whitfield at canonical.com>