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secugen: Protect against invalid fw_data

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This fixes an issue detected by scan build
This commit is contained in:
Marco Trevisan (Treviño)
2026-06-17 19:47:23 +02:00
parent 5b34908a21
commit 726cf8a515
1 changed files with 6 additions and 0 deletions
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libfprint/drivers/secugen.c
+6
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@@ -636,6 +636,12 @@ init_fw_read_cb (FpiUsbTransfer *transfer,
else else
{ {
/* All FW data received - extract image processing parameters */ /* All FW data received - extract image processing parameters */
if (!self->fw_data)
{
fp_warn ("FW data buffer missing; skipping calibration extraction");
fpi_ssm_next_state (transfer->ssm);
return;
}
/* BLC region offsets: 16 × int16 at fw_data[0x0e] */ /* BLC region offsets: 16 × int16 at fw_data[0x0e] */
if (self->fw_data_len >= SECUGEN_BLC_OFFSETS_FW + 32) if (self->fw_data_len >= SECUGEN_BLC_OFFSETS_FW + 32)