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| author | Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com> | 2018-01-04 18:46:55 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-08 14:13:45 -0500 |
| commit | 78f300049335ae81a5cc6b4b232481dc5e1f9d41 (patch) | |
| tree | 1022901b77f6602dc0778c78868c7f82d341ecef /drivers | |
| parent | 7deea450eb912f269d999de62c8ab922d1461748 (diff) | |
| download | linux-stable-78f300049335ae81a5cc6b4b232481dc5e1f9d41.tar.gz linux-stable-78f300049335ae81a5cc6b4b232481dc5e1f9d41.tar.bz2 linux-stable-78f300049335ae81a5cc6b4b232481dc5e1f9d41.zip | |
bnxt_en: Fix the 'Invalid VF' id check in bnxt_vf_ndo_prep routine.
In bnxt_vf_ndo_prep (which is called by bnxt_get_vf_config ndo), there is a
check for "Invalid VF id". Currently, the check is done against max_vfs.
However, the user doesn't always create max_vfs. So, the check should be
against the created number of VFs. The number of bnxt_vf_info structures
that are allocated in bnxt_alloc_vf_resources routine is the "number of
requested VFs". So, if an "invalid VF id" falls between the requested
number of VFs and the max_vfs, the driver will be dereferencing an invalid
pointer.
Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Venkat Devvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 5ee18660bc33..c9617675f934 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -70,7 +70,7 @@ static int bnxt_vf_ndo_prep(struct bnxt *bp, int vf_id) netdev_err(bp->dev, "vf ndo called though sriov is disabled\n"); return -EINVAL; } - if (vf_id >= bp->pf.max_vfs) { + if (vf_id >= bp->pf.active_vfs) { netdev_err(bp->dev, "Invalid VF id %d\n", vf_id); return -EINVAL; } |