Commit 135870bd authored by Kangjie Lu's avatar Kangjie Lu Committed by Greg Kroah-Hartman

brcmfmac: fix missing checks for kmemdup

[ Upstream commit 46953f97 ]

In case kmemdup fails, the fix sets conn_info->req_ie_len and
conn_info->resp_ie_len to zero to avoid buffer overflows.
Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
Acked-by: default avatarArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 1d8e898a
......@@ -5464,6 +5464,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
conn_info->req_ie =
kmemdup(cfg->extra_buf, conn_info->req_ie_len,
GFP_KERNEL);
if (!conn_info->req_ie)
conn_info->req_ie_len = 0;
} else {
conn_info->req_ie_len = 0;
conn_info->req_ie = NULL;
......@@ -5480,6 +5482,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
conn_info->resp_ie =
kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
GFP_KERNEL);
if (!conn_info->resp_ie)
conn_info->resp_ie_len = 0;
} else {
conn_info->resp_ie_len = 0;
conn_info->resp_ie = NULL;
......
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