6.12-stable review patch. If anyone has any objections, please let me know.
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From: Kees Cook kees@kernel.org
[ Upstream commit 00a371adbbfb46db561db85a9d7b53b2363880a1 ]
In preparation for making the kmalloc family of allocators type aware, we need to make sure that the returned type from the allocation matches the type of the variable being assigned. (Before, the allocator would always return "void *", which can be implicitly cast to any pointer type.)
The assigned type is "struct snd_sof_pipeline **", but the returned type will be "struct snd_sof_widget **". These are the same size allocation (pointer size) but the types don't match. Adjust the allocation type to match the assignment.
Signed-off-by: Kees Cook kees@kernel.org Fixes: 9c04363d222b ("ASoC: SOF: Introduce struct snd_sof_pipeline") Acked-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Link: https://patch.msgid.link/20250426062511.work.859-kees@kernel.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/sof/ipc4-pcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c index 2fe4969cdc3b4..9db2cdb321282 100644 --- a/sound/soc/sof/ipc4-pcm.c +++ b/sound/soc/sof/ipc4-pcm.c @@ -780,7 +780,8 @@ static int sof_ipc4_pcm_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm
/* allocate memory for max number of pipeline IDs */ pipeline_list->pipelines = kcalloc(ipc4_data->max_num_pipelines, - sizeof(struct snd_sof_widget *), GFP_KERNEL); + sizeof(*pipeline_list->pipelines), + GFP_KERNEL); if (!pipeline_list->pipelines) { sof_ipc4_pcm_free(sdev, spcm); return -ENOMEM;