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wil6210: missing length check in wmi_set_ie

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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>
This commit is contained in:
Lior David 2017-11-14 15:25:39 +02:00 committed by Kalle Valo
parent 705d2fde94
commit b5a8ffcae4
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/ath/wil6210/wmi.c
View file

@ -1616,8 +1616,14 @@ 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;