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wil6210: missing length check in wmi_set_ie

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commit b5a8ffcae4103a9d823ea3aa3a761f65779fbe2a upstream.

Add a length check in wmi_set_ie to detect unsigned integer
overflow.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lior David 2017-11-14 15:25:39 +02:00 committed by Greg Kroah-Hartman
parent 39d9e1c62e
commit 107b02c81a
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/ath/wil6210/wmi.c
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@ -1380,8 +1380,14 @@ int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
};
int rc;
u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
struct wmi_set_appie_cmd *cmd;
if (len < ie_len) {
rc = -EINVAL;
goto out;
}
cmd = kzalloc(len, GFP_KERNEL);
if (!cmd) {
rc = -ENOMEM;
goto out;