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33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
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From b44d5f71da7d2c44a7575376c582f9f1cde1cf6d Mon Sep 17 00:00:00 2001
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From: Ben Romberger <bromberg@codeaurora.org>
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Date: Wed, 3 Apr 2013 16:20:18 -0700
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Subject: ASoC: msm: Add size safety check to ACDB driver
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Check that the size sent by userspace is not larger
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then the internal amount allowed. This protects
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against overflowing the stack due to an invalid size.
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Change-Id: I4a5b5ca5212bea32b671027d68a66367c5d4c4e7
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CRs-fixed: 470222
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Signed-off-by: Ben Romberger <bromberg@codeaurora.org>
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---
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sound/soc/msm/qdsp6v2/audio_acdb.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/sound/soc/msm/qdsp6v2/audio_acdb.c b/sound/soc/msm/qdsp6v2/audio_acdb.c
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index 16d6e81c..b2a469b 100644
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--- a/sound/soc/msm/qdsp6v2/audio_acdb.c
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+++ b/sound/soc/msm/qdsp6v2/audio_acdb.c
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@@ -1064,7 +1064,7 @@ static long acdb_ioctl(struct file *f,
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goto done;
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}
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- if (size <= 0) {
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+ if ((size <= 0) || (size > sizeof(data))) {
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pr_err("%s: Invalid size sent to driver: %d\n",
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__func__, size);
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result = -EFAULT;
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--
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cgit v1.1
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