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authorJo-Philipp Wich <jo@mein.io>2023-12-14 16:30:51 +0100
committerJo-Philipp Wich <jo@mein.io>2023-12-14 16:31:29 +0100
commite8d4e4fe967d6b4f77e5820dafbe84676eb20b25 (patch)
tree40328a6ffaa965130a8b495b50134df5bed0b59b
parent5c8fd34bac42edc5d85e532d7babea7112c98471 (diff)
nl80211: fix decoding of NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET attribute
- The expected length was incorrect - An incorrect MCS MAP index was accessed - The maximum MCS index number were wrong Signed-off-by: Jo-Philipp Wich <jo@mein.io>
-rw-r--r--lib/nl80211.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/nl80211.c b/lib/nl80211.c
index 03d1600..d7c94b8 100644
--- a/lib/nl80211.c
+++ b/lib/nl80211.c
@@ -1356,7 +1356,7 @@ uc_nl_convert_rta_he_mcs(const uc_nl_attr_spec_t *spec, struct nl_msg *msg, stru
{
uint8_t bw_support_mask[] = { (1 << 1) | (1 << 2), (1 << 3), (1 << 4) };
uc_value_t *mcs_set, *mcs_bw, *mcs_dir, *mcs_entry, *mcs_idx;
- uint16_t bw[] = { 80, 160, 8080 }, mcs[16];
+ uint16_t bw[] = { 80, 160, 8080 }, mcs[6];
uint16_t u16, phy_cap_0 = 0;
size_t i, j, k, l, max_idx;
@@ -1380,14 +1380,14 @@ uc_nl_convert_rta_he_mcs(const uc_nl_attr_spec_t *spec, struct nl_msg *msg, stru
mcs_dir = ucv_array_new_length(vm, 8);
for (k = 0; k < 8; k++) {
- u16 = mcs[(i * 2) + k];
+ u16 = mcs[(i * 2) + j];
u16 >>= k * 2;
u16 &= 0x3;
switch (u16) {
case 0: max_idx = 7; break;
- case 1: max_idx = 8; break;
- case 2: max_idx = 9; break;
+ case 1: max_idx = 9; break;
+ case 2: max_idx = 11; break;
case 3: continue;
}