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qcacld-3.0: Check module status before processing driver command

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If the driver module is closed do not process the driver command,
it will lead to a crash by accesssing uninitialized lock.

To handle this issue check the module status before processing
driver command and if module is closed, simply return error.

Change-Id: Ic651e1abdf6b2efa27e57695c04ace249f9d21bb
CRs-Fixed: 2018746
This commit is contained in:
Ashish Kumar Dhanotiya 2017-03-14 15:54:05 +05:30 • committed by Sandeep Puligilla
commit ff4e1c4bc4
1 changed files with 10 additions and 0 deletions
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10
core/hdd/src/wlan_hdd_ioctl.c
View file

@ -7248,6 +7248,7 @@ static int hdd_driver_command(hdd_adapter_t *adapter,
{
uint8_t *command = NULL;
int ret = 0;
hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
ENTER();
@ -7256,6 +7257,15 @@ static int hdd_driver_command(hdd_adapter_t *adapter,
return -EINVAL;
}
ret = wlan_hdd_validate_context(hdd_ctx);
if (ret)
return ret;
if (hdd_ctx->driver_status == DRIVER_MODULES_CLOSED) {
hdd_err("Driver module is closed; command can not be processed");
return -EINVAL;
}
/*
* Note that valid pointers are provided by caller
*/