media: venus: hfi: add checks to perform sanity on queue pointers

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commit 5e538fce33 upstream.

Read and write pointers are used to track the packet index in the memory
shared between video driver and firmware. There is a possibility of OOB
access if the read or write pointer goes beyond the queue memory size.
Add checks for the read and write pointer to avoid OOB access.

Cc: stable@vger.kernel.org
Fixes: d96d3f30c0 ("[media] media: venus: hfi: add Venus HFI files")
Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Vikash Garodia 2023-08-10 07:55:01 +05:30 • committed by Greg Kroah-Hartman

parent 55db76caa7

commit a1d8f675ea

1 changed files with 10 additions and 0 deletions

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drivers/media/platform/qcom/venus/hfi_venus.c

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