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| author |   Dan Carpenter <dan.carpenter@linaro.org> | 2025-08-29 15:48:28 +0300 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2025-09-03 09:37:51 +0200 |
| commit | f8f15f6742b8874e59c9c715d0af3474608310ad (patch) | |
| tree | a2b5ae4226619699405c9731bbbe8f6c263dfd49 | |
| parent | Merge tag 'wireless-2025-08-28' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless (diff) | |
| download | wireguard-linux-f8f15f6742b8874e59c9c715d0af3474608310ad.tar.xz wireguard-linux-f8f15f6742b8874e59c9c715d0af3474608310ad.zip | |
wifi: cw1200: cap SSID length in cw1200_do_join()
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>
| -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 b1dd76e8aecb..5d8eaa700779 100644 --- a/drivers/net/wireless/st/cw1200/sta.c +++ b/drivers/net/wireless/st/cw1200/sta.c @@ -1291,7 +1291,7 @@ 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(); |