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dfucore: Reject erase outside the allowed range 

An illegal erase request may get emitted as the DFU program may erase
first. Checking before flashing is not enough.
This commit is contained in:
Uwe Bonnes 2020-03-19 17:43:06 +01:00 committed by UweBonnes
parent a7efe7cc14
commit 2b76ec0ea3
1 changed files with 6 additions and 1 deletions
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7
src/platforms/stm32/dfucore.c
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@ -176,9 +176,14 @@ usbdfu_getstatus_complete(usbd_device *dev, struct usb_setup_data *req)
flash_unlock();
if(prog.blocknum == 0) {
int32_t addr = get_le32(prog.buf + 1);
uint32_t addr = get_le32(prog.buf + 1);
switch(prog.buf[0]) {
case CMD_ERASE:
if ((addr < app_address) || (addr >= max_address)) {
usbdfu_state = STATE_DFU_ERROR;
flash_lock();
return;
}
dfu_check_and_do_sector_erase(addr);
}
} else {