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https://github.com/Divested-Mobile/DivestOS-Build.git
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56 lines
2.1 KiB
Diff
56 lines
2.1 KiB
Diff
From 4fa7499742c56c7f7064c9dc14c3a34f4be38851 Mon Sep 17 00:00:00 2001
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From: Ariel Yin <ayin@google.com>
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Date: Fri, 13 Jan 2017 13:58:56 -0800
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Subject: [PATCH] msm: vidc: WARN_ON() reveals fuction addresses
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There is a security vulnerability where function addresses are
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printed in kernel message if WARN_ON() is invoked implicitly.
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WARN_ON() call is made explicit to avoid this issue.
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Bug: 32873615
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CRs-Fixed: 1093693
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Change-Id: If75581803adf62cb9bda3784ad1d4f4088e0d797
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Signed-off-by: Sanjay Singh <sisanj@codeaurora.org>
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Signed-off-by: Biswajit Paul <biswajitpaul@codeaurora.org>
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---
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drivers/media/platform/msm/vidc/msm_vidc.c | 3 ++-
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drivers/media/platform/msm/vidc/venus_hfi.c | 4 ++--
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2 files changed, 4 insertions(+), 3 deletions(-)
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diff --git a/drivers/media/platform/msm/vidc/msm_vidc.c b/drivers/media/platform/msm/vidc/msm_vidc.c
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index 0f55f3254a43b..b90ebc11d527a 100644
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--- a/drivers/media/platform/msm/vidc/msm_vidc.c
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+++ b/drivers/media/platform/msm/vidc/msm_vidc.c
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@@ -1405,7 +1405,8 @@ static void cleanup_instance(struct msm_vidc_inst *inst)
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debugfs_remove_recursive(inst->debugfs_root);
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mutex_lock(&inst->pending_getpropq.lock);
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- WARN_ON(!list_empty(&inst->pending_getpropq.list));
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+ WARN_ON(!list_empty(&inst->pending_getpropq.list)
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+ && (msm_vidc_debug & VIDC_INFO));
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mutex_unlock(&inst->pending_getpropq.lock);
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}
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}
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diff --git a/drivers/media/platform/msm/vidc/venus_hfi.c b/drivers/media/platform/msm/vidc/venus_hfi.c
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index a7a391f9c8d30..6f6d79a1f6946 100644
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--- a/drivers/media/platform/msm/vidc/venus_hfi.c
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+++ b/drivers/media/platform/msm/vidc/venus_hfi.c
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@@ -261,7 +261,7 @@ static int venus_hfi_acquire_regulator(struct regulator_info *rinfo)
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rinfo->name);
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}
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}
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- WARN_ON(!regulator_is_enabled(rinfo->regulator));
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+ WARN_ON(!regulator_is_enabled(rinfo->regulator) && (msm_vidc_debug & VIDC_INFO));
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return rc;
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}
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@@ -3954,7 +3954,7 @@ static int venus_hfi_disable_regulator(struct regulator_info *rinfo)
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disable_regulator_failed:
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/* Bring attention to this issue */
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- WARN_ON(1);
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+ WARN_ON(msm_vidc_debug & VIDC_INFO);
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return rc;
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}
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