]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ice: warn about potentially malicious VFs
authorVignesh Sridhar <vignesh.sridhar@intel.com>
Tue, 2 Mar 2021 18:12:00 +0000 (10:12 -0800)
committerTony Nguyen <anthony.l.nguyen@intel.com>
Thu, 22 Apr 2021 16:26:22 +0000 (09:26 -0700)
commit0891c89674e8d39eb47310e7c0646c2b07228fe7
treeb101c8d30b5ffcaaccbe2c0513003e76e02ac885
parent5d869070569a23aa909c6e7e9d010fc438a492ef
ice: warn about potentially malicious VFs

Attempt to detect malicious VFs and, if suspected, log the information but
keep going to allow the user to take any desired actions.

Potentially malicious VFs are identified by checking if the VFs are
transmitting too many messages via the PF-VF mailbox which could cause an
overflow of this channel resulting in denial of service. This is done by
creating a snapshot or static capture of the mailbox buffer which can be
traversed and in which the messages sent by VFs are tracked.

Co-developed-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Signed-off-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Co-developed-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Co-developed-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Vignesh Sridhar <vignesh.sridhar@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/ethernet/intel/ice/ice.h
drivers/net/ethernet/intel/ice/ice_main.c
drivers/net/ethernet/intel/ice/ice_sriov.c
drivers/net/ethernet/intel/ice/ice_sriov.h
drivers/net/ethernet/intel/ice/ice_type.h
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h