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| author | Curtis Malainey <cujomalainey@chromium.org> | 2024-02-13 14:38:34 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-02-13 13:28:45 +0000 |
| commit | fcbe4873089c84da641df75cda9cac2e9addbb4b (patch) | |
| tree | 6dfcfeeb97772593b50ae3362cca14f9d844c941 /sound/soc | |
| parent | c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 (diff) | |
| download | linux-stable-fcbe4873089c84da641df75cda9cac2e9addbb4b.tar.gz linux-stable-fcbe4873089c84da641df75cda9cac2e9addbb4b.tar.bz2 linux-stable-fcbe4873089c84da641df75cda9cac2e9addbb4b.zip | |
ASoC: SOF: IPC3: fix message bounds on ipc ops
commit 74ad8ed65121 ("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: 74ad8ed65121 ("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>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/sof/ipc3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c index fb40378ad084..c03dd513fbff 100644 --- a/sound/soc/sof/ipc3.c +++ b/sound/soc/sof/ipc3.c @@ -1067,7 +1067,7 @@ static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev) return; } - if (hdr.size < sizeof(hdr)) { + if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) { dev_err(sdev->dev, "The received message size is invalid\n"); return; } |