mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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138 lines
4.0 KiB
Diff
138 lines
4.0 KiB
Diff
From 38a83df036084c00e8c5a4599c8ee7880b4ee567 Mon Sep 17 00:00:00 2001
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From: Walter Yang <yandongy@codeaurora.org>
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Date: Wed, 21 Dec 2016 14:43:46 +0800
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Subject: ASoC: msm-cpe-lsm: cleanup ioctl functions
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Some of the ioctl command handling is not properly using the
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copy_from_user interface. Fix these issues and cleanup the ioctl
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functions to make sure there is no illegal memory access.
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CRs-Fixed: 1090482
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Change-Id: Ib18e4b132d3487a3103335768aad5df2ebe13f2d
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Signed-off-by: Walter Yang <yandongy@codeaurora.org>
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---
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sound/soc/msm/msm-cpe-lsm.c | 51 +++++++++++++--------------------------------
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1 file changed, 14 insertions(+), 37 deletions(-)
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diff --git a/sound/soc/msm/msm-cpe-lsm.c b/sound/soc/msm/msm-cpe-lsm.c
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index ef4c9b0..0b77e8c 100644
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--- a/sound/soc/msm/msm-cpe-lsm.c
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+++ b/sound/soc/msm/msm-cpe-lsm.c
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@@ -1179,13 +1179,6 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
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dev_dbg(rtd->dev,
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"%s: %s\n",
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__func__, "SNDRV_LSM_REG_SND_MODEL_V2");
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- if (!arg) {
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- dev_err(rtd->dev,
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- "%s: Invalid argument to ioctl %s\n",
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- __func__,
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- "SNDRV_LSM_REG_SND_MODEL_V2");
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- return -EINVAL;
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- }
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memcpy(&snd_model, arg,
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sizeof(struct snd_lsm_sound_model_v2));
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@@ -1328,13 +1321,6 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
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dev_dbg(rtd->dev,
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"%s: %s\n",
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__func__, "SNDRV_LSM_EVENT_STATUS");
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- if (!arg) {
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- dev_err(rtd->dev,
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- "%s: Invalid argument to ioctl %s\n",
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- __func__,
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- "SNDRV_LSM_EVENT_STATUS");
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- return -EINVAL;
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- }
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user = arg;
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@@ -1437,12 +1423,6 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
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break;
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case SNDRV_LSM_SET_PARAMS:
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- if (!arg) {
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- dev_err(rtd->dev,
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- "%s: %s Invalid argument\n",
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- __func__, "SNDRV_LSM_SET_PARAMS");
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- return -EINVAL;
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- }
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memcpy(&det_params, arg,
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sizeof(det_params));
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if (det_params.num_confidence_levels <= 0) {
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@@ -2289,12 +2269,6 @@ done:
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}
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#ifdef CONFIG_COMPAT
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-struct snd_lsm_event_status32 {
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- u16 status;
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- u16 payload_size;
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- u8 payload[0];
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-};
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-
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struct snd_lsm_sound_model_v2_32 {
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compat_uptr_t data;
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compat_uptr_t confidence_level;
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@@ -2326,8 +2300,6 @@ struct snd_lsm_module_params_32 {
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};
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enum {
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- SNDRV_LSM_EVENT_STATUS32 =
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- _IOW('U', 0x02, struct snd_lsm_event_status32),
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SNDRV_LSM_REG_SND_MODEL_V2_32 =
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_IOW('U', 0x07, struct snd_lsm_sound_model_v2_32),
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SNDRV_LSM_SET_PARAMS32 =
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@@ -2421,7 +2393,7 @@ static int msm_cpe_lsm_ioctl_compat(struct snd_pcm_substream *substream,
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err);
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}
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break;
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- case SNDRV_LSM_EVENT_STATUS32: {
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+ case SNDRV_LSM_EVENT_STATUS: {
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struct snd_lsm_event_status *event_status = NULL;
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struct snd_lsm_event_status u_event_status32;
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struct snd_lsm_event_status *udata_32 = NULL;
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@@ -2463,7 +2435,6 @@ static int msm_cpe_lsm_ioctl_compat(struct snd_pcm_substream *substream,
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} else {
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event_status->payload_size =
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u_event_status32.payload_size;
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- cmd = SNDRV_LSM_EVENT_STATUS;
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err = msm_cpe_lsm_ioctl_shared(substream,
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cmd, event_status);
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if (err)
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@@ -2563,13 +2534,6 @@ static int msm_cpe_lsm_ioctl_compat(struct snd_pcm_substream *substream,
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return -EINVAL;
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}
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- if (!arg) {
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- dev_err(rtd->dev,
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- "%s: %s: No Param data to set\n",
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- __func__, "SET_MODULE_PARAMS_32");
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- return -EINVAL;
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- }
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-
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if (copy_from_user(&p_data_32, arg,
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sizeof(p_data_32))) {
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dev_err(rtd->dev,
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@@ -2647,6 +2611,19 @@ static int msm_cpe_lsm_ioctl_compat(struct snd_pcm_substream *substream,
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kfree(params32);
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break;
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}
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+ case SNDRV_LSM_REG_SND_MODEL_V2:
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+ case SNDRV_LSM_SET_PARAMS:
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+ case SNDRV_LSM_SET_MODULE_PARAMS:
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+ /*
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+ * In ideal cases, the compat_ioctl should never be called
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+ * with the above unlocked ioctl commands. Print error
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+ * and return error if it does.
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+ */
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+ dev_err(rtd->dev,
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+ "%s: Invalid cmd for compat_ioctl\n",
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+ __func__);
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+ err = -EINVAL;
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+ break;
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default:
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err = msm_cpe_lsm_ioctl_shared(substream, cmd, arg);
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break;
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--
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cgit v1.1
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