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Check the firmware error status after each report request. Allocate a larger buffer and retry when the firmware needs more space. Confirm that a certificate buffer exists before reading its entries. Parse the certificate table from the allocated buffer. Some kernels do not fail the ioctl when the certificate buffer is too small. On those kernels, the code read the certificate table from an invalid placeholder address. Signed-off-by: Brennan Tracy <[email protected]>
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Check the firmware error status after each report request. Allocate a larger buffer and retry when the firmware needs more space. Confirm that a certificate buffer exists before reading its entries. Parse the certificate table from the allocated buffer.
Some kernels do not fail the ioctl when the certificate buffer is too small. On those kernels, the code read the certificate table from an invalid placeholder address.