From: Ahmad Masri <[email protected]> Check that the mid is valid and that it does not exceed the memory size allocated to vifs array.
Signed-off-by: Ahmad Masri <[email protected]> Signed-off-by: Maya Erez <[email protected]> --- drivers/net/wireless/ath/wil6210/cfg80211.c | 6 +++--- drivers/net/wireless/ath/wil6210/debugfs.c | 10 +++++----- drivers/net/wireless/ath/wil6210/main.c | 8 ++++---- drivers/net/wireless/ath/wil6210/netdev.c | 10 +++++----- drivers/net/wireless/ath/wil6210/pcie_bus.c | 4 ++-- drivers/net/wireless/ath/wil6210/pm.c | 6 +++--- drivers/net/wireless/ath/wil6210/wil6210.h | 1 + drivers/net/wireless/ath/wil6210/wmi.c | 2 +- 8 files changed, 24 insertions(+), 23 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index a1e226652..e8d65dd 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -465,7 +465,7 @@ static int wil_cfg80211_validate_add_iface(struct wil6210_priv *wil, .num_different_channels = 1, }; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { if (wil->vifs[i]) { wdev = vif_to_wdev(wil->vifs[i]); params.iftype_num[wdev->iftype]++; @@ -486,7 +486,7 @@ static int wil_cfg80211_validate_change_iface(struct wil6210_priv *wil, }; bool check_combos = false; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif_pos = wil->vifs[i]; if (vif_pos && vif != vif_pos) { @@ -1806,7 +1806,7 @@ void wil_cfg80211_ap_recovery(struct wil6210_priv *wil) int rc, i; struct wiphy *wiphy = wil_to_wiphy(wil); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif = wil->vifs[i]; struct net_device *ndev; struct cfg80211_beacon_data bcon = {}; diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 27cb182..817762f 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1381,7 +1381,7 @@ static int link_show(struct seq_file *s, void *data) if (p->status != wil_sta_connected) continue; - vif = (mid < wil->max_vifs) ? wil->vifs[mid] : NULL; + vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL; if (vif) { rc = wil_cid_fill_sinfo(vif, i, sinfo); if (rc) @@ -1579,7 +1579,7 @@ static int sta_show(struct seq_file *s, void *data) break; } mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; - if (mid < wil->max_vifs) { + if (mid < GET_MAX_VIFS(wil)) { struct wil6210_vif *vif = wil->vifs[mid]; if (vif->wdev.iftype == NL80211_IFTYPE_STATION && @@ -1645,7 +1645,7 @@ static int mids_show(struct seq_file *s, void *data) int i; mutex_lock(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (vif) { @@ -1866,7 +1866,7 @@ static int wil_link_stats_debugfs_show(struct seq_file *s, void *data) /* iterate over all MIDs and show per-cid statistics. Then show the * global statistics */ - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; seq_printf(s, "MID %d ", i); @@ -1922,7 +1922,7 @@ static ssize_t wil_link_stats_write(struct file *file, const char __user *buf, if (rc) return rc; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (!vif) continue; diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index f2432ad..6a6bfb3 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -685,7 +685,7 @@ void wil_bcast_fini_all(struct wil6210_priv *wil) int i; struct wil6210_vif *vif; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (vif) wil_bcast_fini(vif); @@ -1483,7 +1483,7 @@ void wil_abort_scan_all_vifs(struct wil6210_priv *wil, bool sync) lockdep_assert_held(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif = wil->vifs[i]; if (vif) @@ -1551,7 +1551,7 @@ static int wil_restore_vifs(struct wil6210_priv *wil) struct wireless_dev *wdev; int i, rc; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (!vif) continue; @@ -1627,7 +1627,7 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) wil_abort_scan_all_vifs(wil, false); mutex_unlock(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (vif) { cancel_work_sync(&vif->disconnect_worker); diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c index b4e0eb1..59f041d 100644 --- a/drivers/net/wireless/ath/wil6210/netdev.c +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. - * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -27,7 +27,7 @@ bool wil_has_other_active_ifaces(struct wil6210_priv *wil, struct wil6210_vif *vif; struct net_device *ndev_i; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (vif) { ndev_i = vif_to_ndev(vif); @@ -155,7 +155,7 @@ static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget) struct wil6210_vif *vif; if (!ring->va || !txdata->enabled || - txdata->mid >= wil->max_vifs) + txdata->mid >= GET_MAX_VIFS(wil)) continue; vif = wil->vifs[txdata->mid]; @@ -294,7 +294,7 @@ static u8 wil_vif_find_free_mid(struct wil6210_priv *wil) { u8 i; - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { if (!wil->vifs[i]) return i; } @@ -500,7 +500,7 @@ void wil_vif_remove(struct wil6210_priv *wil, u8 mid) bool any_active = wil_has_active_ifaces(wil, true, false); ASSERT_RTNL(); - if (mid >= wil->max_vifs) { + if (mid >= GET_MAX_VIFS(wil)) { wil_err(wil, "invalid MID: %d\n", mid); return; } diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c index c8c6613..3b82d6c 100644 --- a/drivers/net/wireless/ath/wil6210/pcie_bus.c +++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. - * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -176,7 +176,7 @@ static void wil_remove_all_additional_vifs(struct wil6210_priv *wil) struct wil6210_vif *vif; int i; - for (i = 1; i < wil->max_vifs; i++) { + for (i = 1; i < GET_MAX_VIFS(wil); i++) { vif = wil->vifs[i]; if (vif) { wil_vif_prepare_stop(vif); diff --git a/drivers/net/wireless/ath/wil6210/pm.c b/drivers/net/wireless/ath/wil6210/pm.c index f307522..56143e7 100644 --- a/drivers/net/wireless/ath/wil6210/pm.c +++ b/drivers/net/wireless/ath/wil6210/pm.c @@ -26,7 +26,7 @@ static void wil_pm_wake_connected_net_queues(struct wil6210_priv *wil) int i; mutex_lock(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif = wil->vifs[i]; if (vif && test_bit(wil_vif_fwconnected, vif->status)) @@ -40,7 +40,7 @@ static void wil_pm_stop_all_net_queues(struct wil6210_priv *wil) int i; mutex_lock(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif = wil->vifs[i]; if (vif) @@ -123,7 +123,7 @@ int wil_can_suspend(struct wil6210_priv *wil, bool is_runtime) /* interface is running */ mutex_lock(&wil->vif_mutex); - for (i = 0; i < wil->max_vifs; i++) { + for (i = 0; i < GET_MAX_VIFS(wil); i++) { struct wil6210_vif *vif = wil->vifs[i]; if (!vif) diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index 1b81f3f..de72466 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -1061,6 +1061,7 @@ struct wil6210_priv { #define vif_to_wil(v) (v->wil) #define vif_to_ndev(v) (v->ndev) #define vif_to_wdev(v) (&v->wdev) +#define GET_MAX_VIFS(wil) min_t(int, (wil)->max_vifs, WIL_MAX_VIFS) static inline struct wil6210_vif *wdev_to_vif(struct wil6210_priv *wil, struct wireless_dev *wdev) diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 19247c5..c5bcb8d 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -3205,7 +3205,7 @@ static void wmi_event_handle(struct wil6210_priv *wil, if (mid == MID_BROADCAST) mid = 0; - if (mid >= ARRAY_SIZE(wil->vifs) || mid >= wil->max_vifs) { + if (mid >= GET_MAX_VIFS(wil)) { wil_dbg_wmi(wil, "invalid mid %d, event skipped\n", mid); return; -- 1.9.1
