[PATCH AUTOSEL 5.2 28/76] mac80211: fix possible memory leak in ieee80211_assign_beacon
From: Sasha Levin <sashal@kernel.org>
Date: 2019-08-02 13:35:45
Also in:
lkml, netdev, stable
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Lorenzo Bianconi <lorenzo@kernel.org>
[ Upstream commit bcc27fab8cc673ddc95452674373cce618ccb3a3 ]
Free new beacon_data in ieee80211_assign_beacon whenever
ieee80211_assign_beacon fails
Fixes: 8860020e0be1 ("cfg80211: restructure AP/GO mode API")
Fixes: bc847970f432 ("mac80211: support FTM responder configuration/statistic")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/770285772543c9fca33777bb4ad4760239e56256.1562105631.git.lorenzo@kernel.org (local)
Signed-off-by: Johannes Berg <redacted>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/cfg.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a1973a26c7fc4..b8288125e05db 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c@@ -935,8 +935,10 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, err = ieee80211_set_probe_resp(sdata, params->probe_resp, params->probe_resp_len, csa); - if (err < 0) + if (err < 0) { + kfree(new); return err; + } if (err == 0) changed |= BSS_CHANGED_AP_PROBE_RESP;
@@ -948,8 +950,10 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, params->civicloc, params->civicloc_len); - if (err < 0) + if (err < 0) { + kfree(new); return err; + } changed |= BSS_CHANGED_FTM_RESPONDER; }
--
2.20.1