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36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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From f2a3f5e63e15e97a66e8f5a300457378bcb89d9c Mon Sep 17 00:00:00 2001
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From: Deepak Verma <dverma@codeaurora.org>
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Date: Mon, 21 Oct 2013 17:37:11 +0530
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Subject: msm: vidc: Check validity of userspace address
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Before writing to a userspace address, verification
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of the validity of user space address is required.
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Change-Id: I9141e44a6c11aaf3f4d57c08bb0dd26a7b214f34
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CRs-fixed: 556356
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Signed-off-by: Deepak Verma <dverma@codeaurora.org>
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---
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drivers/video/msm/vidc/common/enc/venc.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/drivers/video/msm/vidc/common/enc/venc.c b/drivers/video/msm/vidc/common/enc/venc.c
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index 1801461..707d948 100644
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--- a/drivers/video/msm/vidc/common/enc/venc.c
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+++ b/drivers/video/msm/vidc/common/enc/venc.c
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@@ -1414,6 +1414,12 @@ static long vid_enc_ioctl(struct file *file,
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return -EFAULT;
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DBG("VEN_IOCTL_GET_SEQUENCE_HDR\n");
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+ if (!access_ok(VERIFY_WRITE, seq_header.hdrbufptr,
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+ seq_header.bufsize)) {
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+ ERR("VEN_IOCTL_GET_SEQUENCE_HDR:"\
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+ " Userspace address verification failed.\n");
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+ return -EFAULT;
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+ }
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result = vid_enc_get_sequence_header(client_ctx,
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&seq_header);
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if (!result) {
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--
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cgit v1.1
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