| Message ID | 20220331114845.32747-1-peter.ujfalusi@linux.intel.com |
|---|---|
| State | Accepted |
| Commit | 5708cc2f4b50c7bf27234eee77e1d9487533bbd3 |
| Headers | show |
| Series | ASoC: SOF: topology: Fix memory leak of scontrol->name | expand |
On Thu, 31 Mar 2022 14:48:45 +0300, Peter Ujfalusi wrote: > The scontrol->name is allocated with kstrdup, it must be freed before the > scontrol is freed to avoid leaking memory. > > The constant leaking happens via sof_widget_unload() path on every module > removal. > > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: SOF: topology: Fix memory leak of scontrol->name commit: 5708cc2f4b50c7bf27234eee77e1d9487533bbd3 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 9b11e9795a7a..75d78f9178a3 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -941,11 +941,13 @@ static int sof_control_load(struct snd_soc_component *scomp, int index, default: dev_warn(scomp->dev, "control type not supported %d:%d:%d\n", hdr->ops.get, hdr->ops.put, hdr->ops.info); + kfree(scontrol->name); kfree(scontrol); return 0; } if (ret < 0) { + kfree(scontrol->name); kfree(scontrol); return ret; } @@ -1380,6 +1382,7 @@ static int sof_widget_unload(struct snd_soc_component *scomp, } kfree(scontrol->ipc_control_data); list_del(&scontrol->list); + kfree(scontrol->name); kfree(scontrol); }
The scontrol->name is allocated with kstrdup, it must be freed before the scontrol is freed to avoid leaking memory. The constant leaking happens via sof_widget_unload() path on every module removal. Fixes: b5cee8feb1d48 ("ASoC: SOF: topology: Make control parsing IPC agnostic") Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> --- sound/soc/sof/topology.c | 3 +++ 1 file changed, 3 insertions(+)