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mac80211: fix memory overlap due to variable length param

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As of now HE operation element in bss_conf includes variable length
optional field followed by other HE variable. Though the optional
field never be used, actually it is referring to next member of the
bss_conf structure which is not correct. Fix it by declaring needed
HE operation fields within bss_conf itself.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Link: https://lore.kernel.org/r/1587768108-25248-2-git-send-email-rmanohar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Rajkumar Manoharan 2020-04-24 15:41:39 -07:00 • committed by Johannes Berg
parent 1512bc076e
commit 60689de46c
3 changed files with 11 additions and 12 deletions
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7
include/net/mac80211.h
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@ -604,7 +604,7 @@ struct ieee80211_ftm_responder_params {
* nontransmitted BSSIDs
* @profile_periodicity: the least number of beacon frames need to be received
* in order to discover all the nontransmitted BSSIDs in the set.
* @he_operation: HE operation information of the AP we are connected to
* @he_oper: HE operation information of the AP we are connected to
* @he_obss_pd: OBSS Packet Detection parameters.
* @he_bss_color: BSS coloring settings, if BSS supports HE
*/
@ -668,7 +668,10 @@ struct ieee80211_bss_conf {
u8 bssid_indicator;
bool ema_ap;
u8 profile_periodicity;
struct ieee80211_he_operation he_operation;
struct {
u32 params;
u16 nss_set;
} he_oper;
struct ieee80211_he_obss_pd he_obss_pd;
struct cfg80211_he_bss_color he_bss_color;
};