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ASoC: SOF: IPC3: fix message bounds on ipc ops
commit74ad8ed651
("ASoC: SOF: ipc3: Implement rx_msg IPC ops") introduced a new allocation before the upper bounds check in do_rx_work. As a result A DSP can cause bad allocations if spewing garbage. Fixes:74ad8ed651
("ASoC: SOF: ipc3: Implement rx_msg IPC ops") Reported-by: Tim Van Patten <timvp@google.com> Cc: stable@vger.kernel.org Signed-off-by: Curtis Malainey <cujomalainey@chromium.org> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://msgid.link/r/20240213123834.4827-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -1067,7 +1067,7 @@ static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev)
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return;
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}
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if (hdr.size < sizeof(hdr)) {
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if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) {
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dev_err(sdev->dev, "The received message size is invalid\n");
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return;
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}
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