diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c index d2163da28d18..fa4ea1258d29 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -178,6 +178,15 @@ int rvu_mbox_handler_lmtst_tbl_setup(struct rvu *rvu, * pcifunc (will be the one who is calling this mailbox). */ if (req->base_pcifunc) { + /* A VF is untrusted and must not redirect its LMTLINE to + * another PF's region, so confine VF callers to their own PF. + */ + if (is_vf(req->hdr.pcifunc) && + (!is_pf_func_valid(rvu, req->base_pcifunc) || + rvu_get_pf(rvu->pdev, req->hdr.pcifunc) != + rvu_get_pf(rvu->pdev, req->base_pcifunc))) + return -EPERM; + /* Calculating the LMT table index equivalent to primary * pcifunc. */ |