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authorJakub Kicinski <kuba@kernel.org>2025-11-12 09:33:23 -0800
committerJakub Kicinski <kuba@kernel.org>2025-11-12 09:33:24 -0800
commite949824730daf381bd0fe37e1a77458e0c26e8df (patch)
treeb140784ef0b46fd97b278ec1ebcb9c49a23975b1 /net/mac80211/parse.c
parent7e975caa0f7bf2f83a5e18b4ae69c3d7fff4eafa (diff)
parent0eb272033b64ef05fffa30288284659c33e17830 (diff)
Merge tag 'wireless-next-2025-11-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says: ==================== More -next material, notably: - split ieee80211.h file, it's way too big - mac80211: initial chanctx work towards NAN - mac80211: MU-MIMO sniffer improvements - ath12k: statistics improvements * tag 'wireless-next-2025-11-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (26 commits) wifi: cw1200: Fix potential memory leak in cw1200_bh_rx_helper() wifi: mac80211: make monitor link info check more specific wifi: mac80211: track MU-MIMO configuration on disabled interfaces wifi: cfg80211/mac80211: Add fallback mechanism for INDOOR_SP connection wifi: cfg80211/mac80211: clean up duplicate ap_power handling wifi: cfg80211: use a C99 initializer in wiphy_register wifi: cfg80211: fix doc of struct key_params wifi: mac80211: remove unnecessary vlan NULL check wifi: mac80211: pass frame type to element parsing wifi: mac80211: remove "disabling VHT" message wifi: mac80211: add and use chanctx usage iteration wifi: mac80211: simplify ieee80211_recalc_chanctx_min_def() API wifi: mac80211: remove chanctx to link back-references wifi: mac80211: make link iteration safe for 'break' wifi: mac80211: fix EHT typo wifi: cfg80211: fix EHT typo wifi: ieee80211: split NAN definitions out wifi: ieee80211: split P2P definitions out wifi: ieee80211: split S1G definitions out wifi: ieee80211: split EHT definitions out ... ==================== Link: https://patch.msgid.link/20251112115126.16223-4-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mac80211/parse.c')
-rw-r--r--net/mac80211/parse.c30
1 files changed, 25 insertions, 5 deletions
diff --git a/net/mac80211/parse.c b/net/mac80211/parse.c
index c5e0f7f46004..bfc4ecb7a048 100644
--- a/net/mac80211/parse.c
+++ b/net/mac80211/parse.c
@@ -6,7 +6,7 @@
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2024 Intel Corporation
+ * Copyright (C) 2018-2025 Intel Corporation
*
* element parsing for mac80211
*/
@@ -286,6 +286,24 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
bitmap_zero(seen_elems, 256);
+ switch (params->type) {
+ /* we don't need to parse assoc request, luckily (it's value 0) */
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ:
+ default:
+ WARN(1, "invalid frame type 0x%x for element parsing\n",
+ params->type);
+ break;
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON:
+ case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION:
+ case IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON:
+ break;
+ }
+
for_each_element(elem, params->start, params->len) {
const struct element *subelem;
u8 elem_parse_failed;
@@ -566,7 +584,8 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
if (params->mode < IEEE80211_CONN_MODE_VHT)
break;
- if (!params->action) {
+ if (params->type != (IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION)) {
elem_parse_failed =
IEEE80211_PARSE_ERR_UNEXPECTED_ELEM;
break;
@@ -582,7 +601,8 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
if (params->mode < IEEE80211_CONN_MODE_VHT)
break;
- if (params->action) {
+ if (params->type == (IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION)) {
elem_parse_failed =
IEEE80211_PARSE_ERR_UNEXPECTED_ELEM;
break;
@@ -942,7 +962,7 @@ ieee80211_prep_mle_link_parse(struct ieee80211_elems_parse *elems_parse,
sub->len = end - sub->start;
sub->mode = params->mode;
- sub->action = params->action;
+ sub->type = params->type;
sub->from_ap = params->from_ap;
sub->link_id = -1;
@@ -1041,7 +1061,7 @@ ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params)
sub.start = elems_parse->scratch_pos;
sub.mode = params->mode;
sub.len = nontx_len;
- sub.action = params->action;
+ sub.type = params->type;
sub.link_id = params->link_id;
/* consume the space used for non-transmitted profile */