diff options
| author | Dan Carpenter <dan.carpenter@linaro.org> | 2025-08-29 15:48:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-09 18:58:12 +0200 |
| commit | cedbbba8a8e825cc95d849bf992b4273c0977a16 (patch) | |
| tree | 6af70c74aed4e598da1630d00ec52294861b56df | |
| parent | e211e3f4199ac829bd493632efcd131d337cba9d (diff) | |
wifi: cw1200: cap SSID length in cw1200_do_join()
[ Upstream commit f8f15f6742b8874e59c9c715d0af3474608310ad ]
If the ssidie[1] length is more that 32 it leads to memory corruption.
Fixes: a910e4a94f69 ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/e91fb43fcedc4893b604dfb973131661510901a7.1756456951.git.dan.carpenter@linaro.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/st/cw1200/sta.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c index c259da8161e4..2bce867dd4ac 100644 --- a/drivers/net/wireless/st/cw1200/sta.c +++ b/drivers/net/wireless/st/cw1200/sta.c @@ -1290,7 +1290,7 @@ static void cw1200_do_join(struct cw1200_common *priv) rcu_read_lock(); ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); if (ssidie) { - join.ssid_len = ssidie[1]; + join.ssid_len = min(ssidie[1], IEEE80211_MAX_SSID_LEN); memcpy(join.ssid, &ssidie[2], join.ssid_len); } rcu_read_unlock(); |