This is the 5.4.219 stable release

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Merge 5.4.219 into android11-5.4-lts

Changes in 5.4.219
	Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
	mac80211: mlme: find auth challenge directly
	wifi: mac80211: don't parse mbssid in assoc response
	wifi: mac80211: fix MBSSID parsing use-after-free
	Linux 5.4.219

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I23480812b6b0d4527bc81cbc07115eeabe07cc81
This commit is contained in:
Greg Kroah-Hartman 2022-10-17 17:57:49 +02:00
commit f944347410
5 changed files with 24 additions and 16 deletions

View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 4
SUBLEVEL = 218
SUBLEVEL = 219
EXTRAVERSION =
NAME = Kleptomaniac Octopus

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@ -1460,7 +1460,6 @@ struct ieee802_11_elems {
const u8 *supp_rates;
const u8 *ds_params;
const struct ieee80211_tim_ie *tim;
const u8 *challenge;
const u8 *rsn;
const u8 *erp_info;
const u8 *ext_supp_rates;
@ -1507,7 +1506,6 @@ struct ieee802_11_elems {
u8 ssid_len;
u8 supp_rates_len;
u8 tim_len;
u8 challenge_len;
u8 rsn_len;
u8 ext_supp_rates_len;
u8 wmm_info_len;
@ -1521,6 +1519,8 @@ struct ieee802_11_elems {
u8 country_elem_len;
u8 bssid_index_len;
void *nontx_profile;
/* whether a parse error occurred while retrieving these elements */
bool parse_error;
};

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@ -2832,14 +2832,14 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data;
const struct element *challenge;
u8 *pos;
struct ieee802_11_elems elems;
u32 tx_flags = 0;
pos = mgmt->u.auth.variable;
ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, &elems,
mgmt->bssid, auth_data->bss->bssid);
if (!elems.challenge)
challenge = cfg80211_find_elem(WLAN_EID_CHALLENGE, pos,
len - (pos - (u8 *)mgmt));
if (!challenge)
return;
auth_data->expected_transaction = 4;
drv_mgd_prepare_tx(sdata->local, sdata, 0);
@ -2847,7 +2847,8 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
IEEE80211_TX_INTFL_MLME_CONN_TX;
ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0,
elems.challenge - 2, elems.challenge_len + 2,
(void *)challenge,
challenge->datalen + sizeof(*challenge),
auth_data->bss->bssid, auth_data->bss->bssid,
auth_data->key, auth_data->key_len,
auth_data->key_idx, tx_flags);
@ -3226,7 +3227,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
pos = mgmt->u.assoc_resp.variable;
ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, &elems,
mgmt->bssid, assoc_data->bss->bssid);
mgmt->bssid, NULL);
if (!elems.supp_rates) {
sdata_info(sdata, "no SuppRates element in AssocResp\n");
@ -3301,6 +3302,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
sdata_info(sdata,
"AP bug: VHT operation missing from AssocResp\n");
}
kfree(bss_elems.nontx_profile);
}
/*
@ -3578,7 +3580,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
pos = mgmt->u.assoc_resp.variable;
ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, &elems,
mgmt->bssid, assoc_data->bss->bssid);
mgmt->bssid, NULL);
if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
elems.timeout_int &&
@ -3885,6 +3887,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
ifmgd->assoc_data->timeout = jiffies;
ifmgd->assoc_data->timeout_started = true;
run_again(sdata, ifmgd->assoc_data->timeout);
kfree(elems.nontx_profile);
return;
}
@ -4052,7 +4055,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
ieee80211_report_disconnect(sdata, deauth_buf,
sizeof(deauth_buf), true,
WLAN_REASON_DEAUTH_LEAVING);
return;
goto free;
}
if (sta && elems.opmode_notif)
@ -4067,6 +4070,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
elems.cisco_dtpc_elem);
ieee80211_bss_info_change_notify(sdata, changed);
free:
kfree(elems.nontx_profile);
}
void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,

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@ -216,6 +216,8 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
rx_status, beacon);
}
kfree(elems.nontx_profile);
return bss;
}

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@ -1006,10 +1006,6 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
} else
elem_parse_failed = true;
break;
case WLAN_EID_CHALLENGE:
elems->challenge = pos;
elems->challenge_len = elen;
break;
case WLAN_EID_VENDOR_SPECIFIC:
if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
pos[2] == 0xf2) {
@ -1367,6 +1363,11 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE,
nontransmitted_profile,
nontransmitted_profile_len);
if (!nontransmitted_profile_len) {
nontransmitted_profile_len = 0;
kfree(nontransmitted_profile);
nontransmitted_profile = NULL;
}
}
crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter,
@ -1396,7 +1397,7 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
offsetofend(struct ieee80211_bssid_index, dtim_count))
elems->dtim_count = elems->bssid_index->dtim_count;
kfree(nontransmitted_profile);
elems->nontx_profile = nontransmitted_profile;
return crc;
}