[PATCH net-next v1] nl80211/cfg80211: add nla_policy for S1G band

* [PATCH net-next v1] nl80211/cfg80211: add nla_policy for S1G band
@ 2024-01-19  9:37 Lin Ma
  2024-01-19  9:42 ` Lin Ma
  0 siblings, 1 reply; 4+ messages in thread
From: Lin Ma @ 2024-01-19  9:37 UTC (permalink / raw)
  To: djohannes, davem, edumazet, kuba, pabeni, linux-wireless, netdev,
	linux-kernel
  Cc: Lin Ma

Our detector has identified another case of an incomplete policy.
Specifically, the commit df78a0c0b67d ("nl80211: S1G band and channel
definitions") introduced the NL80211_BAND_S1GHZ attribute to
nl80211_band, but it neglected to update the
nl80211_match_band_rssi_policy accordingly.

Similar commits that add new band types, such as the initial
commit 1e1b11b6a111 ("nl80211/cfg80211: Specify band specific min RSSI
thresholds with sched scan"), the commit e548a1c36b11 ("cfg80211: add 6GHz
in code handling array with NUM_NL80211_BANDS entries"), and the
commit 63fa04266629 ("nl80211: Add LC placeholder band definition to
nl80211_band"), all require updates to the policy.
Failure to do so could result in accessing an attribute of unexpected
length in the function nl80211_parse_sched_scan_per_band_rssi.

To resolve this issue, this commit adds the policy for the
NL80211_BAND_S1GHZ attribute.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
---
 net/wireless/nl80211.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 60877b532993..980300621a60 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -911,6 +911,7 @@ nl80211_match_band_rssi_policy[NUM_NL80211_BANDS] = {
 	[NL80211_BAND_5GHZ] = { .type = NLA_S32 },
 	[NL80211_BAND_6GHZ] = { .type = NLA_S32 },
 	[NL80211_BAND_60GHZ] = { .type = NLA_S32 },
+	[NL80211_BAND_S1GHZ] = { .type = NLA_S32 },
 	[NL80211_BAND_LC]    = { .type = NLA_S32 },
 };
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread